I love this phone! Really what else is there to say about this one? When I got it almost 2 years ago, it was running Windows 8 and I thought it was great then. Now with the upgrade to Windows 8.1 it is even better! Battery Life I have yet to find ANY mobile phone have a good battery life. It will only stay charged if you don't use it everyday, every couple of minutes. Display/Screen Quality It may only be a small screen, but it is excellent quality. Call Quality Other than an echo every now and then (which has happened on ALL of my phones) this is awesome! And the "echo" has happened even less on this phone, I am thinking it has something to do with the network I'm on at the time. Ease of Use Coming from using almost all Microsoft products to begin with, this was one of the easiest phones to learn to use. Durability Can not tell you how many times I have dropped the phone out of my pocket, how many times the dogs have gotten it and chewed on it, and the case or screen doesn't look none for the wear. Design It is a simple design, much easier to use than the "rotten fruit" phone.