I used this for the first time just a day after recieving the unit to navigate to LHR terminal 5 not having flown from this terminal before. I found the unit to be easy to update, easy to use and accurate; especially the speed warnings which pinged every time I came close to limit signs/cameras. The real view junction feature is superb, clear and effective, a real bonus on the way out of T5 to the M4! As luck would have it the M4 was closed for a large section of my route to T5 (even at 5am!) this meant an extensive diversion which the Nuvi 2310 managed without fuss and was quick to re-route. A great buy which I'd happily reccomend to anyone.