Excerpt: I recieved my HTC one (M7) as part of a contract agreement about 20months ago. The HTC seemed like a good contender at that time for a really good phone, a Ultrapixel camera good in low light, Beats audio for good sound, front facing speakers for good speaker volume and a really sharp big screen.
Pros: Aluminium body, Sharp luscious screen
Cons: Battery performance, Front speaker grilles, Reception quality, Camera
Summary: Right out of the box it was still locked (not unlocked like the description), had to contact the seller and he/she sent me the code. Right now I have it working on AT&T in AK but it should work with any gsm network that uses the specified network frequencies.