Summary: Hardware quality rated 1 out of 5 (poor): I was on day two of my vacation in New York City when the GPS decided it was no longer going to power on, unless it was connected to external power. I'll spare you the gory details, but let's just say Garmin technical support consists of emailing to them and a different person responding to each query which causes a loss in continuity.
Summary: I got left in a lurch when this thing died on me day 2 of my vacation, and Garmin would not overnight me a replacement. Very disappointed.
Pros: Lightweight. Very portable.
Cons: Poor build quality. Software not very intuitive and requires many steps for commonly used simple tasks. Customer support unresponsive to questions, instead responding with a boilerplate response.
Summary: What has happened to Garmin? They have always stood for quality products, until recently. This is one of two Nuvi 3750 GPS that I have purchased and returned. Each of them worked fine for short periods of time, but always felt very hot to the touch--almost too hot to hold. Then, after 2 or 3 hours of use, they first lost the maps, then just quit, sometimes to restart immediately, other times wouldn't start for an hour or so.