[Beagle]

I don't personally use TIR but the group I'm in has a lot of users for it and they all love it, and I can see how it's very useful for them, predominantly in awareness during flight.

I do personally use freelook a lot though. Something as simple as how BF3 lets you hold right click to freelook around - this is a must have and I can't imagine PS2 shipping without it. Adding in TIR support that makes use of that is icing on the cake.