bkm,
I have been using the gstar since March 2008 and am very happy with it.
You can see a very nice NGC5128 at
http://www.lewisandnatasha.com/html/...otography.html
I use a 10" reflector on an EQ6 pro mount.
I am just a beginner too but to get round stars you must polar align (I drift align) and get the best focus by using the zoom function then it should work.
Steve Quirk at
http://my.hwy.com.au/~sjquirk/images/images.html has amazing images using the GSTAR. The only thing that he has that we don't is precise alignment, dark skies , superior image processing skills and experience.
Regards
Proudy