polaris alpha iq+

I'm anxiously waiting for Polaris days to replace our Kreepy Krauly Legend with the Polaris VRXIQ+. After reading much here about robotic cleaners, in particular the VRXIQ+ and the Maytronics M600, I think I settled on the Polaris. For owners of the VRXIQ+/Alpha iQ+, are you still happy with it...

Bought the Polaris Alpha IQ+ robotic cleaner and I love it so far. It picks up leaves and debris quite well. Our pool has colored glass beads as part of it's finish, and I noticed that the cleaner picks up a few glass beads every time it cleans the pool floor/walls. Is this normal? The plaster...