I own a old 3.5-inch Garmin StreetPilot c340 for a few year . it be a good small machine , and still work , but it be screen be small , and the body be very thick . it be time to buy another thin and big screen Garmin , so I get a 5 '' Nuvi 1490-MLT . it have a huge screen , and thin body just what I have be look for . I have this gp for a few month already , but do not really test it yet . it be work just fine like my old pilot so far . the 1490 t model price have drop significantly , but 1490-LMT model be still expense .