If you're looking for a heavy duty GoTo mount for all your observing or astrophotography needs, the Orion Atlas EQ-G computerized GoTo telescope mount is perfect. It supports up to 40lbs and finds over 42,900 celestial objects with pushbutton ease.
I have had the Atlas EQ-G mount a little over a month now and I am just now getting the stars to show in a wide field eye piece. Most of the problem was in the polar alignment scope which I had to fine tune. The manual tells one how to do this but I wanted to exhaust all other possabilites that I was not doing something wrong before I started making adjustments. Another small problem was that the RA lock would not hold which made tracking almost impossible. That was a easy fix by moving the lock lever but it took a while to figure out what was going on. Now the 3 star alignment is dead on and whatever object I select with the Go-To feature is always in the field of view. I tracked M42 for 6 hours and it never left the field of view although at 5 hours a small adjustment was needed. I have not done any fine tuning for tracking as yet. The mount is a good investment for the serious amature and the Go-To feature is great after 20 years of using setting circles, Telrad and finder scope.