I like it because if you have a quiet half an hour you can just fire it up and go without spending an hour setting stuff up first. It's not the most demanding of games but a good way to chill out and escape from the real world.
IL2, FSX, ROF, SOW, Cliffs of Dover...
Vista Ultimate 64bit. Core2Quad9550 @ 3GHz, Nvidia 560Ti 1GB @ 1920x1080P, 4GB RAM, Creative SB X-FI