There are two parts of the question, let me start with the easier one - Weapon and Shield Talent. After experimenting it seems that this talent works as advertised with Larder Door as a shield - bonus deflection is added and it does apply to reflex as well.
Now for Two Weapon Style. That one is harder, largely because the game does not provide an interface option to tell how fast an attack is. However I can bypass that through cunning use of cheat tables in CheatEngine.
Two Weapon Style talent modifies property called DualWieldAttackSpeedMultiplier
. Every character has it at 1
, when the talent is taken it is increased to 1.2
. Since that's not very noticeable I volounteered to increase it to 20 just to see what happens. Character wielding normal two weapons was attacking like crazy - and character with a weapon and Larder Shield didn't change it's attack speed (still using normal AttackSpeedMultiplier
property).
Therefore Two Weapon Style talent does NOT work with that shield.
As a bonus - Quality enchantments do not increase the damage Larder Door does.
You can recruit the first four companions (Aloth, Edér, Durance and Kana) basically immediately after completing the tutorial; You can rush to grab the four of them at level two without affecting anything, and with no combat if you're careful, which can be a big help before you explore your way into some of the nastier fights in chapter one.
Aloth, Wizard
Aloth is an Elven Wizard with a tendency to run his mouth off at inopportune moments. You can find him in Gilded Vale, standing in front of the Black Hound Inn, getting into a fight with some of the locals. Help him out, and he'll sign on to your merry band.
Map
Edér, Fighter
Edér is a Human Fighter, also in Gilded Vale. While you'll see him hanging out under the tree in the center of town when you first arrive, he won't be particularly talkative until you've spent the night at the local Inn for the first time, and then followed that up with a conversation with a Dwarven Animancer that can be found hanging out, under the same tree. After that, chat with Edér for a few minutes about the state of affairs in Gilded Vale, and he'll realize pretty quickly that you're his best chance to get out of dodge - something he really ought to have done a long time ago.
Map
Durance, Priest
Durance is a Human Priest of Magran, the Godess of War, Fire, and Explosives, and he's waiting for you at Magran's Fork, directly to the South of Gilded Vale. Leave Gilded Vale, and simply follow the road in Magran's Fork, and you'll come across him waiting by a statue of his Goddess. Have a chat with him, and he'll explain that he's been waiting for you because he's intent on testing you, and otherwise spouting on about all manner of cryptic BS. If you're willing to let him rant and rave at you, he's happy to follow you to do so.
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Kana Rua, Chanter
Kana Rua is an Amanua Chanter, looking for an ancient text of some significance to his people. You'll find him at the gates of Caed Nua, chasing after the Watcher Maerwald, whom he believes can shed some light on things. Seeing as that's where you're headed as well, he offers to join you.
Map
The remaining companions cannot be recruited until after you've entered Caed Nua and met Maerwald. After you gain control of the Stronghold and repair the Eastern Barbican, the path opens up to another portion of the world, and you can recruit the remaining 4 NPC Companions. Again, you can rush to grab all four with no ill effects if you'd like to gain them at minimum level, which in their case, is level four. You can recruit these next four in any order you like. You'll likely find Sagani first.
Sagani, Ranger
Sagani is a Dwarven Ranger, searching for the reincarnation containing the soul of an elder of her tribe. You'll find her at the center of the Woodend Plains, directly South of Caed Nua. Just follow the road, and you'll find her standing under a sign post. Convince her that you're a Watcher and might know something about where she needs to go, and she'll follow you, so long as you promise to take her there.
Map
Hiravias, Druid
Hiravias is a foul mouthed, depraved, morally suspect Orlan Druid. You'll find him standing over a slaughtered deer carcass in Stormwall Gorge, the map directly East from Woodend Plains. Just follow the road to the east, and when it forks, take the turn to the south. He'll offer to share his meal, and, regardless of whether you accept, offer to hitchhike with your group as well.
Map
Grieving Mother, Cipher
Grieving Mother is a Human Cipher who primarily communicates telepathically, and hides her true self under layers of illusion. You'll find her on the eastern end of Dyrford Village, directly East from Stormwall Gorge where she's marked on the map as soon as you enter town. Try to talk to her, and she'll immediately assault your senses with a barrage of visions. At the end of which, shocked that your PC, as a Watcher, can see her true soul, she'll offer to accompany you.
Map
Pallegina, Paladin
Pallegina is an Avian Godlike Paladin of the Frermàs mes Canc Suolias, a Paladin Order from the Vailian Republics. She's bit more complicated to recruit than the other NPC's. You'll find her in Defiance Bay, specifically in the Ondra's Gift District. You can get there by heading west from the Woodend Plains, across the bridge, and working through the districts. You'll first meet her standing outside of the Vailian Trading Company Warehouse, where she'll have some choice words about the inhabitants:
Map
After that, if you head inside, you'll want to speak to this guy, Mestre Verzano inside the building. He'll give you a quest to deliver some seeds to the Goose And Fox Tavern, which is in the Copperlane District, which you should've passed through on the way to Ondra's Gift. Inside, you'll find Gareth at the bar. Deliver the seeds, engage in or avoid an altercation at the tavern, return to the warehouse, and Pallegina will offer to work with your party.
Best Answer
Yes. Pillars of Eternity does not have class based weapon proficiencies, everyone can use every weapon and no class is "better" at any weapon, unless you take weapon talents.
However, some weapon types are naturally accurate, which means that weapon type has a bonus to accuracy (Dagger, Club, Spear etc.), and some are naturally inaccurate, which means they suffer a penalty (Pistol, Arquebus etc). There is also a bonus for using one single handed weapon on it's own.
Take my current Aloth for example. I equiped him with a bunch of different weapons from my stash. He has no weapon focus, and his Accuracy with the following weapons is:
As you can see, his accuracy is consistent accross all weapons, with any difference being due to either the bonus for a using one single hand weapon, or the weapon having an accuracy based trait.
Both created and recruited characters will not be better with any particular weapon unless they have weapon talents (my Eder started with Weapon Focus: Ruffian).