I recently borrowed my sister's Garmin 255W (4.3" widescreen) and worked just great..! I will be purchasing a Garmin in the fall when the new models come out. The Garmin has some really neat features and I was able to use it without a manual.

PS..I have an old Magellan that takes forever (sometimes never) to get a satellite signal, but the Garmin got a signal almost immediately even in the mountains.