Ipad2 ?

I have read a lot of discussion about the role of the ipad2 in navigation and whether they are worth carrying on board. I love using mine and its saving my marriage. With the ipad2 I get good gps reception in the saloon which allows me to rest and quickly check location and heading without going to the helm and looking over my wife's shoulder. Portability is wonderful and allows me to navigate without constantly asking the helmsman questions. I enjoy an independent chart from the chartplotter (in addition to a paper chart), and also like the fact that i can write gps coordinates in the log book at the navigation station without troubling others. I downloaded INavX as the app, and then NOAA charts. Easy installation and use.