I had issues on 7.55, very unstable and painful jailbreak, I lost all my data and had to reinitialize the system once
But I haven't had any problems on 9.00, been using it since I learned of the jailbreak, I have been backing up my saves regularly just in case but I am really not concerned about it, and if something does go wrong again like on 7.55 then I highly doubt I would need to do more than a full restore then reinstall my packages and saves
But I haven't had any problems on 9.00, been using it since I learned of the jailbreak, I have been backing up my saves regularly just in case but I am really not concerned about it, and if something does go wrong again like on 7.55 then I highly doubt I would need to do more than a full restore then reinstall my packages and saves