Put me down in the "Happy" column. Is it perfect? No, far from it. But as a developer, I get that some things take time to iron out. I'm happy to have mine sooner than later.
As for stability though, mine has only been rebooted for power outages, and firmware updates. I sure can't complain about that. Granted our home is only 17-1800 sqft, but it reaches to every corner, and also 2 houses down from us. I've got a door/window sensor, and also an outlet that was shipped with the Almond+ and both are through 2 walls and about 100 or so feet away and work perfectly, every time.
Maybe I just got lucky though.