I also have a Cloudwatcher which works very well with Voyager. Have used for last 6 months or so with no issues. I don’t have the solo unit, just run it off my observatory PC. You need to spend quite a bit of time (or I did) to fine tune the cloud detection parameters by watching the sky on a day with passing clouds, particularly high clouds so that it is more accurate. Now that I have done that it is quite good. It only looks at a small area of the sky, so doesn’t always represent conditions at your target. There is an oscillation in the light reading of my unit during darkness which is a bit odd - doesn’t occur when it’s light. Have referred this to my local supplier but haven’t received a response as yet. Not a big issue. Ambient temperature readings during the day are also a bit high, but at night they are fine. Other than that it works flawlessly and does what it needs to do. If you’ve got any other queries, let me know.