Summary: I think Garmin was cheap on the features or at least not smart. The unit displays while you ride the calories burn count, which nobody cares about. However it does not give you the time, which is so basic and you would expect it from a $130 bike computer. Also it won't give you GPS coordinates so if you want to mark a place you can't, if you get hurt or your lost and need to call for help, you can't give your coordinates to speed up the search.
Summary: This does a good job of keeping all of your rides together and analyzed, however it does not have street mapping. It will sometimes lose touch with the satellites on a path with a canopy of trees but it mostly keeps contact. A bit pricey for what could be done by a regular cyclometer. The price will eventually come down. Over 10 miles my cyclometer and the gps vary by about 1/4 to 1/2 mile. I consider it a luxury.
Summary: The gps side works great but it's off with speed and distance. Funny thing is that it shows a slower speed but a longer distance? So I'm just relying on the GPS side of it which works great for tracking.
Summary: As other reviewers mention, this computer is nice and simple. I chose this model as I don't need all of the special functions offered by the 500. I just wanted an accurate odometer/speedometer that could be used across multiple bikes with minimal hassle. That is exactly what this computer is. It is a little pricey, but that is likely due to the GPS antenna. Sure an iphone or other smart phone would work, but they are much larger and the battery doesn't last as long.
Summary: I took my first dip into GPS bike computers with this, I can only echo most of the sentiment here that it's easy to setup and use - it's great not to have to fiddle with magnets and bits of wire anymore to mount the thing. The battery seems to last forever and the integration into Garmin's online portal is a nice touch. However, there seems to be a big problem with its precision.
Summary: Auf freier Fläche arbeitet das Gerät zufriedenstellend. Im Wald ist die Geschwindigkeitsanzeige eher mangelhaft. Ständig wechselt die Anzeige trotz gleichbleibender Geschwindigkeit. Da ich es nur als Tacho, für einen Elektro Krankenfahrstuhl verwende kann ich über die anderen Funktionen keine Angaben machen.