Sygic:

No satellite layer
No traffic layer (very important because you want to know if there are traffic congestion LIVE so you can take alternative route which Sygic doesn't provide because it's FIXED or downloaded!!)
No female voice as alternative
$80

This is why Google Map Nav is SICK!! It updated LIVE for traffic. Of course you need 3G all the time. The reason Sygic doesn't need 3G and load fast because it's NOT LIVE!! So it can't do things like update traffic.

NOOOOOOOOOO