I got that same Garmin offer today...I haven’t tried it but if it uses the same general Garmin interface it could be good.  But it’s a $649 device, and at $200 off, $449, which is still pretty pricey.  I just bought a new Samsung Tab A 8” today for less than $200 with tax and I already have the software so I’m in for quite a bit less.  I think it was designed for the Razors and other side-by-sides.