I love my Windows Phone (HTC Arrive). For comparison, I have a personal Android tablet and an iPad I use at work, so I've got a little bit of experience with all of the operating systems. I regularly use my phone for watching Netflix, web-browsing, quick email responses, minor document editing, and minor sys admin work. I think the WP OS is very intuitive and I love that SkyDrive is native. I think the default web browser interface could probably be refined a bit, but I fully intend to stick with this OS as long as Microsoft supports it. My only complaint is that I would like the ability to write Apps for myself without having to go through the WP Marketplace.