Ring-1 in the earlier days was an absolute shit show, full of bsod's and detections (which they hid). Their support was atrocious and they wouldn't even help their customers unless you purchased from them direct (they had a ton of resellers).
This could have changed, and I'm typically more forgiving for providers that have turned their product around, but they gave me such a distaste for their product that I wouldn't even use them on my test PC. I classify them on the same level as like b attlelog or aimjunkies, etc.