We have a Garmin, Nuvi, 205W and we like it alot. My daughter has the Garmin with bluetooth and she uses her phone through it.
Sometimes I turn it on even when I know where I'm going cause it tells me when to turn and so I don't get distracted and miss my turn.
We use the portable (weighted) mount because we have 3 vehicles and can move it to whichever one we are driving.