Man, that is a lucky break with the hidden folder. Here is my question though, do you actually know where that hidden folder is now, or did you just find it once and hope you never need it again? I ask because if the power blinks again you want to know the exact path without hunting around while you are stressed out. And once you find it, are you copying that folder somewhere off the PC, like a USB stick, or is it staying on the same drive that just took the hit? A backup on the same machine does not help much if the drive itself ever dies.

$45 from a guy in Phoenix sounds like a gamble that happened to pay off. The warm-up thing you're describing is real, but I wouldn't call it trouble, it's just how these cheap gimbals work. They need a second to settle so the motors can figure out where level is, and if you skip it you get that buzzing and drifting. Honestly a steady hand and a $10 phone case with a grip would've done most of the same job for your niece's game. Not saying your gimbal is junk, but one smooth clip doesn't prove much yet. Use it for a month and see if it still holds up before you trust it.