I buy the Garmin 7200 for the big 7 '' screen to use in we motor home . I do a lot of search and read forum before decide on this one . the text to speech be the greatest as it tell I to move to the right lane more than enough advance of the exit or turn , very important drive a motor home or any vehicle for that matter . if I make a wrong turn it direct I right back to the my route . my wife be the navigator and say it be the best addition to the motor home . she say it be a big stress reliever . we can go off the schedule route and get right back on in the shortest time without worry . the pous 's be wonderful , National Parks , gas station , store almost anything .