I got my daughter the Swagway X2 for Christmas. It arrived in perfect condition, not dirty, scratched, previously opened, etc.
She basically hasn't gotten off the thing since 8 am this morning, except to eat and charge it once. Quality seems great, performs great, my wife has ridden it...overall we're very pleased. The board itself doesn't claim to be UL 2272 certified, only that it comes with a UL 2271 certified battery. Again, very pleased and have had no issues.
Sorry to hear some folks have had issues. I'd buy it again.
Product or Service Mentioned: Swagtron Swagway X2 Hoverboard.
Reason of review: Good quality.