Costly but BOSSly!
Once I got started buying my wife her telescope it seemed there was more to buy to get a great experience. It started with lenses and filters and moved on to this. The piece de resistance so to speak, this is the gem of her new collection. Go anywhere in the world and get lined up immediately! We were having problems with the telescopes computerized alignment system but this solved them all. It enters the time, and longitude and latitude. It has been very helpful to us and helps us get the most out of the scope.