I’ve got a V1 Eero set (original Kickstarter backer) and have added the Disney Circle.  I’ve read about all the compatibility problems between these and while I do have it working, there are definitely a lot of problems I’m having too.  

My question is this - since EERO v2  IS compatible with Circle, could I just get a single V2 to use as the router in my system and pair it with my existing V1’s for coverage throughout the house, or do I need to replace all of my V1’s if I want to be issue free with Circle?