Anything positive is good. It depends what level you play as well as it's possible to achieve much higher win rates at the lower stakes. I'd say 2bb/100 ain't bad, and anything over 4bb/100 is good, over 8-10bb/100 and you're crushing it
Thanks for the responses guys the numbers you guys have given are the ones I was working off of ,just wanted some confirmation they are correct .....scorp