I haven't had any of the stability problems people have talked about here in a long time. My only current issue is that typing in form fields is really slow. On two diferent machines, a G4 450 and a G4 dual gig.

You should really check out the nightly builds. They have added some features that seem quite "inspired" by Safari. The developers seem to be determined to not be out done by Apple. The integrated Google search in the toolbar (or via drop down window) is my favorite, though I had been using the Google bookmarklet as my search page before so its not a big change for me. Changing the sidebar to a bookmark window seems a little shady. It and Safari are running neck and neck.