I don't meet your experience requirement but nevertheless I'm going through the same thing right now and also have done a lot of reading. I think (?) I've decided to go with the most Garmin that I can afford. Garmin is a very innovative, classy, and financially sound company and they dominate the GPS field in every market. For example, they make the most sophisticated aircraft GPS-driven avionics suite for aircraft that has ever been commercialized (approved by the FAA). I have no doubt that whatever bugs might be in their cycle computers will get ironed out - if they really exist and are not rider error.