Unit tested for one week in December, in parallel with a Moto E I finally chose to keep referring the Huawei. I liked the size of Y550, the presence of 4G and quality of finish; In its price range, this is a great little device. The grip is not the most comfortable in view of its size and its design but it has a beautiful screen and the operation is very fluid. APN also good (much higher than the Moto E elsewhere). But babitué of Cyanogenmod and pure Android, I did not like the overlay manufacturer even if it has a certain charm and proves easy to use. As stated above, I preferred the Moto E to its dual SIM, better grip and a shift to more Lollipop able to benefit of a larger community of developers in custom ROM.