The HTC Windows Phone 8X is great overall. Probably the best balanced windows phone out there. Decent size, decent screen, great specifications. I love it, simple to use, sleek design and very fast. the drawback is no radio!
Keep enough storage to keep plenty of pictures, videos, and music: 16 GB is ok, but for some people who are pack rats and keep everything, a big storage size would have been a plus.
If the polycarbonate shell proves to be very durable (which it should from my engineering experience) it will be the future of all premium smartphones. Hope HTC has a patent on the technology.
Problems? Some will want a removable battery, I use an external battery pack, this lets me charge any phone. I highly recommend this phone to any smartphone user out there!