Ok so I lied here is my second post since ive yet to get banned or heavily flammed. This one is more serious. I prefer the 55 mainly for the glide touch. While it is just another bell and whistle you prefere it in time. Its more of an aquired taste. I originally had the hard choice a year and a half ago where i went with the 55. Was stolen about 6 months ago and instead of buying a different model I bought it again. Make sure to get one of the later ones since the first ones had serious issues where after a week or so it would not work. I have had no problems with the headunit. I believe that it was the initial bad batch that was the downfall of the glidetouch.