I bought one of these to replace an older Garmin model. The colour screen and OS mapping features were the attraction. However, OS mapping is an afterthought added extra with Garmin. They are bought as an extra, and the whole device is based around traditional GPS systems. Consequently, the user interface is clonky, slow and not at all user friendly or intuitive. I never used it as it just didn't work as I wanted, so I bought the Satmap system instead, which certainly for UK users who are used to the OS maps, is superb. The Satmap System was designed from the outset for OS maps, bigger screen, longer battery life, miles easier to use. OK it hasn't got the camera of the Garmin, but that is simply not a reason to buy a GPS system anyway. Sorry Garmin, there are better systems elsewhere.