I've had to send my T1000 back for two items. One was an internal failure that they said was very rare, the other was because I bent the Left knob sometime during installation and it didn't register any rotational inputs. They took care of both of those for no charge despite the fact that the unit was well over 2 years old from the date of purchase via Van's. I've asked three or four tech questions by email and phone, and have had answers within 72 hours, despite my comments that they questions were informational only. They allow me to download nav data for free, when Garmin charges $800/yr for my certified aircraft. Even if you have a charge, I expect you are still getting a bargain.