I tried out the T-Mobile 8T variant. It was a really nice device. But after spending the whole week before that with the regular OP8 and loving it, there seemed to be several things that had issues with the device. At least in my experience. For one, I liked the quality of the images that I was getting from the camera. It seems like the 8T, the quality didn't seem to be quite as good IMO. Also, I have experienced this with both the 8 and 8T... On certain web pages and apps, the screen flickers to this weird yellowish tone and it's quite unpleasant. But it seemed to be more prevalent on the 8T in my experience. On the 8, not as bad.
I still kind of wish I would have stuck with the 8T, just for bang of buck and that warp charge. Especially for FREE with the trade in promo they have going on at T-Mobile right now. And of course, now they are out of stock. Oh well. At least my 8 is free as well and for the most part, does everything I need it to.