Oliver Armknecht reviewed Destination Wedding for film-rezensionen.de and gave it 4/5 stars. The review is in German and translates decently with the google translator. A few tranlated quotes are below.
But as an uninvolved audience, this encounter between two people who are so cracked makes it fun. How they deliver verbal combats, sometimes taunting, blaspheming others, ridiculing themselves with their uninhibited lavish nonsense and philosophical pseudo-discussions – that means good conversation.
Destination Wedding consists almost entirely of dialogues and fixed locations, as if this was in reality a play, less a movie. But that’s just the charm of the film, which is a kind of provincial edition by Woody Allen: he’s brittle, whimsical, stranger than the competition, yet somehow closer to life.