I just fed up with this gadget due to its storage issue. Every now and then I have to cleared junk files otherwise the stuff work very slowly. Although the factors like camara clarity , display , build quality and battery back up are okay, prcesser becoming slower and even slower. I bought a new Samsung Evo quality sd card too but the situation is stll the same.
Few of my friends also said the similar problem , otherwise phone is pretty handy and stylish.