Learn English – Alternative expression for “bang for your buck”

Oxford Dictionaries Online has two definitions for clunky. They are:

solid, heavy and old-fashioned

and

making a clunking sound

These two are clearly quite different from the following definitions of clumsy, from the same dictionary:

awkward in movement or in handling things

done awkwardly or without skill

difficult to handle or use; unwieldy

lacking social skills; tactless

On the broader question of synonyms, even where two words do seem to have more or less identical meanings, they will often be used in different contexts.

Try get your money's worth

to get good value

Also try more bounce for the ounce or worth every penny, although not that British.

worth the entire amount that was paid for something.