I have been using a Garmin GPS III for 9 years now and find the screen to small to see both in the car and in the RV. We have used a computer with map software in the RV, but found the screen hard to see in the bright sun. I wanted a new GPS with a BIG screen and the ability to see it in the daylight, and simple enough the wife can operate it as we travel.
The Garmin STP 7200 meets all those reqirement, although it is a bit large when used in our car. We have been on a couple of trips with it now and found it to be accurate for the most part. It at least got us close enough to see the place we wanted. (I have yet to find any GPS mapping software that is 100% accurate.)
After purchaing the unit we found out about the downloadable POI (Points Of Interest) files that are available on the internet. They are a great addition to the built-in points of intetest.
Also after the last trip out, where we spent a hour sitting in a construction project, we discovered the "Detour" button that routes you around a traffic jam. All in all I am quite happy with the STP 7200 and wish I hadn't waited so long to get one. It ought to be great on the next RV trip. For use only in a car I might consider a smaller unit.
You can load MP3 files and audio books and play them through the unit if desired, It would be nice if it would play video files as well. It does have video input capabilities, so I may get the cables and see if I can hook up my video iPod to play through it.

I have owned many GPS'es over the last 15 years or so. I have used the Garmin 7200 every day for two years now. It is absolutly exceptional. No complaints of any kind.

And the screen is actually large enough to see and to be able to read it.

At the price these are selling for now they are an absolute steal. I would recommend buying one now while they are still available. I just ordered a second Garmin 7200 just to keep as a spare for when this one finally does die.

the streetpilot 7200 isn't compatible with the cool things that garmin offers but that didn't matter to me. I wanted something with a large screen that worked great. something with xm nav/radio and this unit was the best thing i found out there.

THIS WORKS AS WELL AS ANY OTHER GPS BUT DOES NOT KEEP YOU OFF PARKWAYS AS ADVERTISED FOR BIG TRUCKS ,BUSES OR RV'S AS PARKWAYS HAVE LOW BRIDGES.

The screen was very large which was EXCATLY what I was looking for. I have used Garmin alot in the pass but I don't like how small most of the screens are on the newer models. I bought this one just because of the screen size and was very happy to see I wasnt sorry. I would strongly recommend this unit to everyone who is looking for a user friendly GPS with a large screen. I wouldnt recommend trying to move it from car to car due to the size of the unit, but other then that I cant say you will be sorry if you buy this model. Hope this helps.