First time off axis guiding and worked flawlessly, using the asi2600mc for imaging and the asi120 mini for guiding,I had to remove the 120mini's extender for achieve focus, finding a star was no issue through the William optics zs73, even through my c8 edge with the .7 reducer I had to trouble finding a guide star, worthwhile purchase.

Usual prompt delivery and service from FLO, but not so impressed with ZWO product testing. After much back and forth, it's clear that the instructions from ZWO on how to connect it scope>OAG>Filter-Wheel>Camera hasn't been tested with a very wide range of scopes, as there are lots of people complaining in forums that the guidecam cannot get close enough to the prism to focus, even with all extensions removed and the prism set to reduce FL to the guidecam. I've spent hours going back and forth, to no avail. It's pretty useless to me, and I either have to pull the camera further back off the Filterwheel, messing up my back-focus (which is tight anyway), and suffer an increased vignette for larger sensors, or use a guide-scope.
Other than the fact the product is well-made, it's not great. More testing before releasing products, please ZWO!!

I was using V1 on a 132mm setup, the stars could never be fully focussed and the small mirror size was noticeable. This fixed both and has improved guiding significantly..

Nice piece of kit. Not had a chance to use this extensively but there’s no doubt it’s an improvement on the smaller prism model ZWO also manufacture. Looking forward to improved guiding.