Just got one, very pleased. Can't see any benefit in a 10PX at almost twice the price, nor can I see any reason to compromise with a 4PM either.

Basically you get all the ergonomic adjustments of the 10px (4pm has some adjustability but not as much), and a lovely full colour high resolution screen (much easier to see, much easier menu navigation). Lack of touchscreen for me is actually an advantage. Also compatible with the F-4G protocol so you can use tiny receivers. Plus Futaba quality.