About the brand and often criticized SAV, nothing wrong at this time, the in-ear headphones obtained was faulty (membrane that creaked when I put them in my ears), I contacted the customer service without asking me return Wiko sent me new headphones / hands-free-kit in less than a week.
Flat for the phone, the battery will generally want no more than one day (24 hours is really the maximum), the only real defect that could reproach him with the fact the volume +/- buttons and have the power "game" but nothing annoying yet.
The '5 "screen is really nice, but it is sometimes difficult to handle with one hand, the level design is really superb the back cover is plastic, however the aluminum edges are superb and inspire confidence, combined with a good case it is adequately protected.