AdvantagesIt gets you to your destination... eventually, minimum expectation of Sat Nav to be honest
DisadvantagesPretty much everything except what has been kept from the old model.
AdvantagesTiny, appealling, accurate, powerful and desirable.
DisadvantagesRubber cover for DC power supply breaks off easily.
Advantages A PDA and sat nav system in one
Disadvantages Looks cheap and tacky