TomTom GPS vs Garmin

[ClassicVW_imp]

I saw this new motorcycle specific TomTom Rider MSRP of $400
http://www.tomtom.com/en_us/products/you...highlights
That compared to the outrageously expensive Garmin Zumo's which go from $600 to $800
I know iPhones have GPS functions, but a dedicated GPS is always nicer to use...plus the one for our car needs to replaced...
Anyone have thoughts or experience on either the TomTom Rider or Garmin Zumo's?
https://buy.garmin.com/en-US/US/cOnTheRo...es-p1.html

Funny. I just received my TomTom Rider last week. I installed it on my Honda NT but only used it once on a trial run. This may be because I took delivery of my CB1100 around the same time! I haven't ridden the NT or used the GPS since! I plan on purchasing a second mounting kit from Tom Tom so I can swap it between both bikes.

For my uses, only a few trips a year, I figured the Rider was a better use of my checking account. I also found an eBay seller and bought one brand new for only $339 which pushed me further in the. TomTom's direction.