I bought this recently and have found it very useful.
Pros:
Size- its very small and compact and able to attach it anywhere
Price-its cheap, i bought a refurbished one from Ebay for $139 not including shipping
Ease of Use- very easy to use, not many features you have to play with and is ready to use out of the box without much hassle
Voice Prompts- it warns you where to turn, how long to turn till the next turn so you never miss a turn
built in speedometer- tells you how fast you are going on the screen along with a compass
Address- able to save addresses for faster routing
Cons:
screen Size- hard to see at night
routing- Doesn't always give you the best routing and haven't found out how to get this bypassed
Moving Map- unable to move the map in the screen to see what else is around, you have to zoom out
So far i'm VERY pleased with this GPS system and its a great starter for any OTR driver