It's one of the first movies to tackle the harsh realities of young men coming home and trying to piece together their lives after Vietnam. Which, is a very worthwhile subject and 50 years later, there have been some really terrific movies that have tackled the subject.
Rolling it up into a rom-com makes it a little tough to digest for me, though. The charisma of the cast is undeniable and there are plenty of moments that are genuinely charming. It's not a bad movie at all, but I'm not sure it's a great movie either.