[TerryC]

I purchased one of these recently and finally got to try it out last night. The installation was very straightforward, and the alignment process quite simple once you entered your location and time. On starting the alignment process, the scope moves around a number of times, pointing to what looks like arbitrary parts of the sky searching for stars in its library. The alignment process seems to need around 100 stars for completion.

Once the alignment process is complete you then have to select a bright star (magnitude 2.0 or less) to complete the calibration with what you see in the eyepiece. A separate finder is enormously valuable at this point ! The calibration process only needs to be completed once.

I am using it on a Skywatcher Az-Eq6. Part of the reason for going this route is I prefer the Celestron hand control to the one that comes with the mount. The additional ease of alignment makes this money well spent.

Australian retailers sell these for about $699. I found they can be purchased from UK for around $450 landed.