Take note that JV is only available with City Navigator (Garmin based on old MFM datas IIRC).
MFM:
Pros - Updated Weekly basis
Cons - No Junction View
City Navigator
Pros - Got Junction View
Cons - Outdated maps sometimes
Been using MFM for a long time and so far am very happy with them.
Many Thanks to the great mappers & contributors here...
![Applause =D>](./images/smilies/eusa_clap.gif)