So far, I've not seen much use for it. The remote start is fun the first 2 times, but then it gets a shoulder shrug. As stated above it's more cost effective to have a remote start system installed. It would also be much more reliable. I've had the remote start feature work 4 of the 7 times I've attempted to use it. On those occasions where it does work, it still takes several minutes to actually start up. As far as using the service for navigation, no thanks. I've got Google Maps for free.