I bought the game and have been generally impressed. As others have said, the graphics are just incredible. There's so much detail that you can even quite clearly see my house, as well as various landmarks around Canberra, in the game. I particularly enjoyed the graphics flying around Cape Town, with Table Mountain etc.
I'm afraid there are still quite a few glitches though. The autopilot on some of the aircraft (e.g. 747, 787) doesn't work properly and I've found it possible to maintain a constant altitude at cruise in "altitude hold" mode. Also, when using autopilot to navigate according to the flight plan, the plane keeps making uncommanded banks to the left and right. I also found it difficult to control the pitch and bank with the keyboard, as is the game default. I got around this by setting it up so that I can use my mouse as a joystick. (I do also have some specialised controls from back when I used to play FSX - joystick, thrust levers and rudder pedals, but don't always have them plugged in.)
With some more patches and bug fixes though, this is going to be a really good game.