This was the first phone I got when I switched over to Sprint from a pay-as-you-go service. I absolutely loved this phone when I first got it. The keyboard fit great in my hands and was easy to use. Performance This phone did exactly what I needed it for, primarily texting. I didn't have much need to go online with it and the few times I did browse the internet on this phone it was clunky and difficult to navigate. But it wasn't meant for that- use it for what it's meant for and it works great. Voice Quality I never had an issue with voice quality on this phone. Battery Life Battery life was excellent. Durability This is hard to answer. Physically, the phone could take a beating. However, I had to have it replaced twice in two years because the screen began to go fuzzy. The second time it got to the point where I could no longer read my screen and had to guess which button to push when I had an incoming call. Ease of Use Very intuitive. I immediately had no trouble navigating this phone. Design At the time, I thought it was gorgeous. Now with the much sleeker smartphones on the market the Rumor looks a little clunky but it still is not an ugly phone and the sliding keyboard is very handy.