I dont really like the GPS, as I do not learn the roads that I am driving as well. That said, for going to new places, it does help a LOT.
We got a garmin nuvi 205w. We wanted the most basic item possible, because in reality, Im not going to pay for traffic service (already get it on my iphone), were not going to use it as an MP3 player, and while the bluetooth handsfree is a nice concept, We both use wired handsfree devices anyway.
The 205W has a wide screen, which we found to be really nice. It is far faster than the last-gen GPS that the in-laws have.
I like the 205w. they have a few other versions if Canadian or Alaskan or European maps are necessary... I figure if we really need them, we will just buy another or the map upgrade. We arent planning on needing either functionality in the next 5 years...