In terms of design, I find it successful, although I would have preferred it to be thinner. But at that price, do not ask too much. The finishes are good, and the translucent border is very nice.
What surprised me most is that this little smartphone is extremely fluid and responsive. It responds tit for tat, that slides alone. For the rest, it's Windows Phone: ergonomics and simplicity are therefore at the appointment.
Only regret: the lack of flash for the camera, and no autofocus. But despite that, I was very pleasantly surprised by the quality of the photos I took, even if the conditions were good.
In short, if you are looking for a smartphone at a small price, I have only one advice: go for it! I doubt it is possible to find a phone too cheap and that is as responsive and pleasant to use.