I'm using this mount with a C90 Mak. I leave it in my garage and bring it out on clear nights. For experimenting with lunar photography, it provides a very sturdy, predictable, mount (far more enjoyable than the shaky camera tripods I used to use).
Pros: Sturdy, smooth, easy to use with a variety of telescopes
Cons: Rather heavy
This review was written in the old system and had content requirements that are different than reviews written today.