I am one of those that have never had a problem with Rock. When I first installed it, I had the same issue stated above and that was about 3-4 months ago. It would crash and restart in safe mode.
I did some experimenting and started removing Cydia/Rock Apps and would let it run a week without the app and see if that had any results.
"MY" culprit after this experiment was Gruppled Lockinfo that was causing the crash and restart in safe mode. Since removing Gruppled Lockinfo, I have not had one single crash so can safely say that Rock has NOT caused any issues in MY iPhone.
I did some experimenting and started removing Cydia/Rock Apps and would let it run a week without the app and see if that had any results.
"MY" culprit after this experiment was Gruppled Lockinfo that was causing the crash and restart in safe mode. Since removing Gruppled Lockinfo, I have not had one single crash so can safely say that Rock has NOT caused any issues in MY iPhone.