I use Sonar Producer in my PC and I find it works flawlessly. I have also modified my PC with a new soundcard with up to 24/96 and an Echo 12 firewire with 24/192 quality. And I have used them both together @24/48. I also have a high end video card added and it renders movies very quickly. I get very few crashes and the ones I do get are always from third party apps mostly when editing video.

There is a big difference between windows 7 and 8 though. The audio engine has been modified and not for the best. If I do upgrade to Win 8 I will have to move up from sonar X1 to X2 just to compensate. But Windows is always a problem till they service pack it. Then it usually runs stellar.

My next computer is going to be a Rain with Windows 7. They will do the bios tuning which is very important to make a PC into a audio/video monster.