Summary: I agree with the reviewer who said the iWay is not without faults but a good GPS for the price.
I've used the iWay 350C in my car for over a year now. I purchased it after briefly using the in-dash nav system in a loaner car while mine was being serviced. I've also recently compared the iWay with a cell-phone navigation option (TeleNav version 3.6 on a Motorola cell phone). Prior to these I used maps generated by Yahoo!