"Excellent Product for the Price"4.5 starson by con_ess
Pros: Easy to use, fast and very accurate.
Cons: Map updates will cost you! Also, battery life for me was only approximately 3 hours life vs. the 5-7 as stated by Pharos.
Summary: Overall, I would recommend this product. It has a quick start up and the text to speech is very clear. When you miss a turn, the auto route feature responds immediately (within half a block). Also, when driving on roads that are parallel in path, the unit recognizes this. I've had previous gps systems where if you take a wrong turn and it is on a road parallel to the one you were suppose to be on, it would still think you were on the correct road.
I've used Pharos Ostia and map updates were free for download. It appears that map updates will be additional . I wish Pharos would make it where you can just download the maps for states that you use most frequently vs. requiring you to purchase the entire USA map for a fee!
BTW the only difference between the Drive 150 and 250 is the screen size and the addition of Canadian maps. Otherwise all the features are exactly the same.