The new product provides connectivity with their InReach product for a plus and leaves behind Garmin TPMS compatibility as a negative. With Garmin it is not enough to question whether the 590/595 glitches are gone without asking what new glitches are introduced - unless this is the first glitchless Garmin product. You also get to invest in new mounting and powering hardware, which if you have multiple bikes can get painful.
As someone who has been with Garmin since my 1998 StreetPilot, I'm no basher, but I"m working on an Android replacement using the bulletproof Kyocera Duraforce Pro with Sapphire Shield or a Samsung Galaxy Active Tab 2 for a larger screen display. Either of these can run GPS apps (Osmand, Locus, Sygic, CoPilot, TomTom, etc.) without a phone account if wanted, but with a phone account you bring the possibilities of Waze or Google. Waze provides better odds now of helping you avoid a speeding ticket than a ValentineOne. Google with downloaded maps can also run sans phone account.
Garmin had no market choice but to drop $2-300 from their normally punitive starting prices because the alternatives are getting much better and much less expensive. IMO the three things holding the Android apps back the most have been (1) the right hardware to run them on given the hostile bike environment (heat, direct sunlight, waterproofness); (2) the learning curve and complexity of getting the apps to work as you want them; and (3) controls that can be manipulated with gross motor skills - i.e. not trying to tag a miniscule icon with a fat gloved finger while operating the bike. Progress is occurring on all of these fronts.