Oh it's fun! I had tried playing Halo 2 on Kiwi Jr's Xbox, but I'm such a noob with an Xbox controller that I gave up. Really fun to play on PC.
I have a fairly low spec laptop, graphics card is just at the minimum standard, but game plays smoothly.
Can't get audio through my bluetooth headphones - seems to be a common issue with the game thus far, lots of audio problems, but the rest is awesome.