We are entertaining a couple we don't know well for dinner. Seeking mid-priced place where we can talk (but it should still be somewhat lively). Nothing too spicy or ethnic since I don't know the other couple's tastes. I did like the menu at Sazon (nuevo-Caribbean) but hear it is very loud and I read mixed reviews for their service. Guests will be in their late 30s/early 40s. Also, nothing too heavy - it's too hot out!
Locale preferences: Chelsea, Union Square, Downtown (except for Lower East Side/East Village).