I've had an ATC since last Spring and I love it. It's especially easy to use and offers many great functions and features. It comes with software that's loaded on my computer that constantly checks for updates to the aviation database, to include terrain updates, TFRs, and fuel prices. It's also easy to switch from the aircraft navigation mode to the street navigation mode and back. The only drawback I've found is that the street navigation database (provided by HP) was last updated in March 2008, and I haven't been able to find an update for it.