No, I just installed safestrap and the rom yesterday and everything has gone well. Last night I did a full safestrap backup of my safe, then switched back to nonsafe by disabling safe. I booted back up to my stock rom, went back into recovery and made a backup of my nonsafe (stock rooted .902). No problems switching back and forth. And, I feel confident since I have a full backup of either rom. ICS is fast and has some interesting ui changes. I spent a lot of time going through all the settings menus to see the differences.have you had any problems switching from safe to unsafe ?