As gaeng som is the favourite dish of both my wife and most of my southern thai inlaws, I've tried getting used to it about once a year for the past 16 years. Tastes better than it smells, but I still don't like it, only manage a tiny portion to be polite - and bring some fun to the table ;)
Durian, however, tasted ok from day one, and great after a couple of years.