My HTC one m8 was recently ran over and destroyed completely and after extensive research I decided to go with the z3v as my replacement. I have to say I'm overall very satisfied with my decision and I think the z3v is one of the best phones(if not the best) I've ever owned. I may have a biased opinion considering I've always been a Sony gamer, with owning the PSP, PS3, and now the PS4, and the remote play that allows you to play your PS4 on the Xperia was a deciding factor for me. I'm usually one that roots and installs custom roms on any device I own, but I knew before i purchased the device it is not yet rootable. Turns out I am very satisfied with Sony take on android 4.4.4 kitkat. They've done a very good job with adding the right features and settings. They have the right amount of customization(audio and visual) To keep even a seasoned madder happy (for the time being anyway.) The build quality is on part with apples iPhone 4s and to me the glass feels nearly identical. I really loved the squared off edges as I have better grip on the phone. The HTC by far had the best, most premium build quality on any phone, but everywhere else I feel like the sony is superior. It's the most overlooked phone verizons ever had. Hope this helps you.