Honestly, this has been one of the best phones I have ever owned.My previous phones have all been flip phones, so I was worried about the transition to a swivel phone. It wasn't as difficult as I thought it would be, and honestly I really only find myself regularly opening the phone when I access my voicemail. It fits comfortably in the hand, but it is a bit uncomfortable to hold against your ear for long periods of time (I solved this by purchasing a bluetooth headset). Sony Ericsson and Cingular do not currently have a phone holster, just phone covers with clips attached. However, I was able to find a holster on Ebay that fits beautifully. The screen has been very resilient - no scratches in the three months that I have had it.Features include text messaging, internet browsing, ringtones, games, camera/video, and best of all, MP3 player. I had a blast modifying MP3s to personalize ringtones for all the people who call me most frequently.The battery life is decent, but not as great as some of the lengths I've heard about from other w600i users. I charge my phone every other night. The nice thing is that even on particular busy days the phone doesn't die before my day is over which is an issue I have encountered with other phones.Call quality is good on the hearing end, but I have had complaints that I sometimes sound like I am on a speakerphone or that the background noise is too much for the person on the other end.A few quibbles. Even though I quickly became accustomed to the swivel open design, I still feel I would have preferred a slider. Also, the internet button cannot be disabled which can lead to unwanted charges if you aren't vigilant about using the lock function.