I have had the original suction cup for Nuvi 660 GPS since Oct 2008. The last few trips I would get it to stick on the windshield of my Honda CRV but as I started driving it would fall off. I had a garmin a few years back that would do the same thing. You would think that they would improve the suction as the they improve the technology. I guess not. I am looking for other options for mounting my GPS in my car. I otherwise love my Garmin Nuvi.Update to review: I have since bought the dash sandbag gps holder and it is only thing that I have found that keeps the GPS in place and not falling out of sight and also can be moved around easily as needed. I would never go back to the suction cups on windshield.