I'm a HUGE fan of the Air Hogs line - most of their planes and helicopters are really fun. These little units are similar in size and shape to the other Air Hogs helicopter - the Havoc, but it's not the same. The body shape is slightly different, and it uses a more dense type of foam, and the rear rotor seems to have been improved a bit.
The fighting is pretty good, but sometimes it's difficult to actually aim the buggers - that could be my own lack of skill talking, but it's something to consider. It's also quite okay from the remote's perspective to just hold down the trigger and fire IR everywhere, and since it bounces off walls somewhat, in a small room this could make the game less enjoyable/challenging.
Keep in mind that you really don't need two people to play unlike other games - if two people are around, great, if not, the havocs are a ton of fun to fly by themselves.
Like the original havoc, these guys need a little weight (the included panels or some tape with a small weight do the trick) to fly forward, otherwise they hover and float on air currents.