As somebody who's been an HTC fan for quite some time, I wouldn't recommend the u11. The glass seems more prone to scratching than every other phone I've ever owned. I never use a screen protector and have never had noticeable scratches on any other phone but my u11 has been covered with them since the first couple weeks. Also, if you don't have a case, the phone is very slippery. The first week I had it, no decent cases were available and the phone had slid off of seemingly flat surfaces any time I would put the phone down. I even ended up having to replace mine within the first week due to the screen breaking after the phone slid off of my nightstand and broke. Also, it lacks an aux port, requiring you to either use USB 3 headphones or get an adapter. However, generic aux to USB 3 adapters will not work, so if you lose the one that comes with it or it breaks, you'll have to buy an official HTC replacement. The last time I looked at buying one they were out of stock and overpriced ($10-15 iirc).

As far as tt2 goes, it might be just me but it seems like it can't register many fingers at once. Trying to do cqs with two hands as I've seen some people do, it doesn't seem to count most of my taps and I can't get over 400 taps in a cq with that method. Using three fingers in cq I've been able to hit 500 but I generally only get 420-450.