Absolutely. We offer 90 day warranties on all of our standard repairs (if we have to buy custom parts, those parts may have a different warranty period). If anything goes wrong after 90 days, it’s unlikely to be due to our repair but you’re welcome to bring it by anyway. We’re usually able to help, especially if it was related to the repair we performed.
It’s ALWAYS a good idea to backup your data before a repair (and we suggest you do). Even Apple advises backing up your data before any repair. However, it’s extremely unlikely you’ll lose any data during the repair.
We are not – but don’t back out now! That’s a good thing. If we were “Apple certified” we would be forced to charge you much higher prices – and maybe give slower turnaround. As it is now we buy the same screens as them, just directly from the sources so we can offer better prices!