Great daily driver. Facebook and MSN Messenger are integrated to messaging so your friends can contact you so easily and you can see everything in one place. When they still get Skype integrated its going to be supreme..

MS Office is just best on any platform. hands down. Also native email client is maybe the best of them all.

Battery Life could be better, although latest update improves this around 30%. Currently getting battery life for whole day.

Screen is fine. Still lacks tethering.

App selection is fine. Even it lags behind iOS and Android in number of apps there is enought for anyone. Plus "Try" option on marketplace is best, you can try almost any app before buying one.