Design Fidelity Robot Vacuums

I can’t believe that these Don’t not have a brush roller. And the things that clean the carpet only hit top of carpet. The spinning things don’t even go all the way to the suction vent. I thought it was going to be like my roomba Irobot back at a sweet deal. Anyone have one of these and can fill me in on how well it cleans. Thanks

2 out of 3 Amazon reviews say it’s decent on hard floors, not so much on carpet.

I notice the Ginger model is going for a lot cheaper than the others…