Interesting, I use it for pro work and find it very acceptable. Nothing is perfect and haven't come across any showstoppers. I used L9 and absolutely hated it, L10 visually and workflow wise is much better. I have come from using Studio One for the last couple of years, at first it was great, limited in a lot of ways but blazingly fast and intuitive in others. If you think L10 is buggy then whatever they have done to Studio One on Mac is beyond desperate. So far really liking L10, maybe because I don't have a huge attachment to L9.