The phone is going good, no damage to it. I didn't even slightly scratch the tampered glass protector. However the case that I had (transparent simple case bought from their store) slightly broke in one of the corners. So I'd advise buying the flip-cover instead.
By the way, right now there is a sale going on. 50% off all the accessories for the oneplus one. Also, if you're going to buy the Oneplus One you currently get 2 free accessories, which is pretty good. I don't think they sell the tampered glass anymore though, not sure why, it's great.