Even though I have MaximDL, I still prefer to use Guidemaster for my guiding.
I can't fault its accuracy even over very loooong periods. If it ever starts letting me down, then I'll switch to guiding ith MaximDL, but I'm very happy with Guidemaster. Very easy to use too.
Guidemaster accuracy at present is +/- 0.5 arcseconds on nights of even mild wind.
