Not a review but first impressions from using the phone at the store.
Hardware - simply amazing. I am an Apple lover for their hardware and build quality. The HTC One makes my iPhone 5 feel inferior. It actually makes my Note 2 feel like a Fisher Price toy.
Software - Sense 5 is great. I love Blinkfeed.
Camera - Looks great on the screen but when I looked at photos on a computer, not the best. Washed out color and poor crop quality.
If Verizon picks up the HTC One, I am in for one first day it comes out. First in line.