I walked into this really cool bar with some friends and one of them said "Ah...gezellig!" and it just fit. IANAL(inguist) but it seems to me having a word for an idea like that gives one a better understanding of it. Not that an American wouldn't appreciate the same space as much, but I think there's a subtle difference in understanding something (and perhaps appreciating it) when you can say "gezellig" rather than stumbling for words that talk around the idea.
Anyone know of a resource for words that have no English equivalent? It's be interesting to see what we're missing out on.
Never try to teach a pig to sing. It wastes your time and annoys the pig. -- Lazarus Long, "Time Enough for Love"