My road bike came with a Shimano R600 compact double crank, would've preferred to have a normal double but whatever, it works fine. I refer to it as my "fat man's double" LOL
IMHO a compact double is pretty much just a triple with slightly less range, disguised as a double so the road nazis (hopefully) won't give you quite as much ####.
Might it be slightly less of an indignity to have to walk up a hill rather than spin up it at 3mph in your triple's 34x30 granny? Who knows... anyways, have fun and ride what you like, that's my motto.