I wouldn't necessarily say this is a comedy, it's just naturally light hearted with a good few laughs spread throughout. It has it's serious side too, focusing around the devastating effects wars have on a community. There is just something missing, and I can't quite put my finger on it.
This is definitely a film you could watch over and over again, if you like Robin William's trademark of impressions and quick talk. But there's nothing too solid about the storyline. Although it does pick up on the serious side of life in a war, it doesn't do it with much success to actually make you feel bad. It's more focused on the soldiers and community enjoying the spirit of this new face - Which isn't a bad thing. Who wants to feel depressed once you've finished watching a film?
And the soundtrack is great. Many rock and roll numbers which make you wanna jump from your seat. Maybe you could just buy the soundtrack? It includes his radio broadcasts as well as the fantastic songs to listen to.
I would say you should watch this film, because you've probably heard a lot of people quote 'Gooooooooooooood morrrning Vietnaaaaaam!' which you do hear numerous times throughout, and it's probably one of Robin William's best performances. The film also looks as if it's set on location, so all the more realism as well! It's always a plus to actually believe what you're seeing on screen. Added to that, there are a lot of memorable scenes that you will think back to - The classroom, the first broadcast, the game at the end. Just wait, you'll see.
You can connect with the chirpy characters, and happily go along for the ride with them. Just don't expect to feel a great sense of accomplishment at the end. You're almost left hanging and wanting more. But it's just the right length for a good evening in front of the telly. Just have fun and enjoy what's being given to you!