I see the Studio One V3 from V2 quite a large change, very similar to Sonar 8.5 to X1 which was a disaster as we all know. (do you guys remember that one) And far worse than the S1 V2 - V3 transition.
For many the V3 Studio One transition has been very good. It is only natural that such a major upgrade has a few teething problems. (which I have had very little or none. I have been doing projects on V3 no issues at all and that really tells the story)
I am sure 3.01 has already sorted out many issues from 3.0. You will find by the time they bring out 3.02 it will be perfect again like it was before.