Anybody else experiencing these issues? Any way to fix them?
Yes, the sync system does not work very well, in the beginning in will work but if you use Opera as your main browser for a while you will notice that it doesn't. I sync between several computers, and my problem is that I almost can't delete bookmarks, when I do it, it will come back later because of the sync system.
Another thing is that there are some things that aren't synced at all. A big one is Speed Dial. I have to re-create my Speed Dial on every new device I use.
This was actually a "feature", so one could have separate speed dials at home and at work for example. But it's useless, hopefully they will fix this soon.