This is a neat tool for the starting or for the old hand, it has lots of great information and is pretty easy to use with a couple of exception:
First, while the unit does have GPS, it only allows you to input a location from its internal lists. In my case the nearest town on the list is more than 30 miles away, this means that when I point my MySky at an object it is generally several degrees off the target (because it believes I am actually 30 miles from my actual location). The unit still provides great information.
My biggest complaint was with the software update. When the unit arrived, its software version did not allow for GPS set up. So, as per the instructions in the book I updated the MySky memory card. The upgrade brought the GPS setup option onto the screen, but locked up the functions so that no location could be entered from any source. I to download the version of autostar from meade's web site to get the proper firmware version.
Pros: Huge library of information, easy to learn
Cons: too few locations, can't input actual GPS info
This review was written in the old system and had content requirements that are different than reviews written today.