One thing I would consider is to look at the remote controls.
MK has a screen to view your settings
MG (I believe) does NOT HAVE A SCREEN to view your settings.

I upgraded to a Terrova 2 years ago and the remote is what pushed me to MK. Unless your TM is linked to your electronics, I have no idea how the MG guys know what their settings are.
I love my MK and after seeing my TM work on my boat, 4 of my friends added Terrovas to their boats