I hope this is the right board to discuss about this.
I pre-ordered the Z3 on Sony store and got it. The phone was great, screen was pleasant to look at, no lags ever happened, but there were too many cons that took over the pros imo:
The battery was not that great, I've installed GSAM App since day one, and now the average screen-on time is only 5 hours, maximum is 6h30m. I've tried resetting the phone via Pc Companion... no luck. I mainly use the phone for Facebook, Web browser, taking pictures, and music, no heavy games.
I've dropped it several times due its f*cking slippery glass panels. So far there's no crack but the aluminum sides are slightly damaged.
It's so uncomfortable to hold. Sony made premium phones for sure, but it's not practical... the Z3 is just a beautiful metal slab but not really a phone. In my opinion, the curved back is much much more comfortable to hold in hands.
Wifi range is horrible. I've tried putting the Z3 next to the LG G3 and Moto G, the Z3 lost signal frequently, the other 2 were fine.
Glass back panel = fingerprint magnet.
Finally, the most disappointed feature - Camera. I don;t know what the heck Sony did to their Z3, but the camera is just average to me. Plus it does not focus well while recording videos, even with normal macro shots; Superior Auto sucks; too tiny flash; a lof of Noise; a lot of disappointments.
Not to mention that it fails so badly on cosmetic look. Huge gaps; unsymmetrical panels; bulging nylon corners. They are not a big deal for me, but compared to other phones in terms of cosmetic build, Sony has to work harder.
