...and misleading in my opinion. I modeled the MU-2 for x-plane and the "demo (not really a demo)" is over 3 years old and not suitable to gauge x-plane abilities in any way...ESPECIALLY if you 1.) tried it with x-plane 9.30 or later or 2.) Your using joystick hardware. If you're using joystick hardware, then you're probably cramming the power lever all the way forward on the joystick, which over-torques the engines..(just like in the real thing)...and if you do that, you will get very excessive roll....which is why we don't do that in the real plane.
The biggest problem with x-plane aircraft is most designers inability to model an aircraft properly. sg38, your synopsis about "invisible ailerons" is doing a disservice to all who would make up their own mind. The MU-2 flight model in x-plane has spoilers on top of the wings, just as in the real thing...it does not require full aileron during takeoff and handles within 98% of the real thing....I know cause I have 40 hours in the real thing.
I can try and give an objective and unbiased opinion...knowing it like I do. The flight model is great (if you have MU-2 time to dispute it with me, I'm all ears). The autopilot is great. The plane models many systems very well and the problem with that is that it makes the systems that don't work really stick out. I elected not to model any systems associated with abnormal or emergency operation for the initial version. Therefore, things like the emergency annunciators and fire handles...while they are animated, they do nothing. In addition, some of the overhead rheostats that control cockpit lighting don't animate. The fuel switches for transferring fuel do not transfer fuel..(because the system is automatic in NORMAL operation). I also did not include a 2D panel because x-plane's 2D panel ability was limited when I began the project. It has since expanded but I have yet to exploit it
My goal with this first version was to simulate normal flying..mostly cross-country IFR for VATSIM and instrument scan. IF you like that kind of flying...you might enjoy it. If you like emergency procedures or 100% systems simulation...this version is not for you.
The next version will correct as many of the shortcomings as I can. I have no idea when that will be...perhaps in the back half of the year. X-Plane 9.30 introduced many new features that will cause me to backtrack and redo some work (such is development with x-plane) ...but the new features really make the simulator much more worthwhile. The detail is towards the top of x-plane's offerings, but I'm seeing more work for x-plane that is easily just as good and better. The MU-2 was begun almost 3 years ago and some of that old tech shows up in some corners. I do want to completely redo the cockpit once I have more systems working. The 3D interaction with the cockpit controls (by mouse) is the best available so far. This is quantifiable in that I have about 60-70 "manipulators" which are 3D controls. The next highest number of manipulators that I am aware of for 3D interaction is about 5..in the default 172. Like anything, this will change with time, but I plan to keep pushing the tech myself.
In the same way that Aeroworx improved their King Air and offered a "deluxe" version...I anticipate doing the same in the ensuing years.