Here's a brief review of the Osprey.
It can be a little unstable if you go outside its limits. VSTOL take off, landing, and flight is ok (if you are familiar with flying helo's or the harrier you will be fine).
STOL landing will take some work, you can pound the harrier but this thing will kill you if you over do it. There seems to be one thing missing, they say there is a light switch as part of the main panel controls but I couldn't find it. Other than that I like it. Here some pics from the test flight