Summary: I agree with the other reviewers except I haven't experienced software crashes yet. Let me list the ways I hate thee, Triton 400: Very poor customer support, nearly non-existent. Odometer inaccurate as stated by others. It can be off by 20% or more. And yet, if you transfer tracks from the unit to the Vantage Point computer software, the mapping program will give accurate milage from the units own data! Go figure. Button interface awkward.