I really like my Z, especially the design. Improvements on Z2 are exactly what I wanted (screen, speaker, magnetic charger).
I also have Sharp SH-06E. The idea of waterproof without ear jack and microusb caps are what Xperia or other water proof phone makers should follow. Unfortunately, Japanese android phones sold in Japan are somehow annoying, for instance, most of them don't have EDGE or LTE, updating outside Japan is the real pain, less developers' toys.