I don't have any guiding experience other than the MGEN II stand alone guider, but it is very easy to use. I successfully guided on the first outing using the MGEN quick start guide - that was with a Celestron AVX and I now use it on a Skywatcher AZ-EQ6.
The only disadvantage is that it's a bit pricey:
https://www.teleskop-express.de/shop...otography.html