I have the phone now for two months and I'm still very satisfied. The best I like the smooth speed and long battery runtime.
All Apps start immediately and the work is proceeding smoothly, even though I'm running a lot of parallel - because my previous smartphone always went to his knees. And the battery lasts in normal use really up to two days!
The mobile phone is also very compact, the screen size, I find absolutely sufficient and the quality superb. The camera replaces now almost completely my compact camera, at least in bright light makes very good pictures.
However, I recommend a protective sleeve and protective film, as both housing and glass are relatively susceptible to scratching.
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Update 02/19/2015: In the meantime, I have the phone nine months and as nervendes wearing part to the waterproof door has proven that protects the charging socket. The rubber is through the daily use become so worn that the valve no longer be closed properly. I use the phone not under water, but it is annoying that the flap constantly dangling from the side of the phone. I cut maybe from times. For a star deduction!