I got the 7" Garmin RV760 LMT and love it. Easier to read and most important easier to press the little screen buttons, much bigger. Yes it does block some wind-shield real-estate but the bigger screen means that I can put it anywhere and still see it. I usually put it on the Riding shotgun side where my wife can program it without me fiddling around it while I'm driving, one less distraction. Don't know about the other models but this one has voice activation which is good not perfect but helpful when driving alone.