Anyone flown the GRT Autopilot

I'm trying to decide whether to put in a Tri Pro Pilot or for a few grand more get a GRT EFIS with auto-pilot.

Since the GRT auto-pilot is new, has anyone got any time on it yet? Any comments or feedback?

Look at this thread.
http://www.vansairforce.com/community/showthread.php?t=75732&highlight=grt

The GRT autopilot in my -10 works great. It took one flight to play with the gains etc to get it to my liking, but it tracks well now and holds altitude extremely well. I find using it through the EFIS simple (there were comments about complexity using it through the EFIS but I do not have an issue with it).

If there is a lot of turbulence I tend to hand fly to reduce some of the tail wagging etc.