Qrevo S VS dreame L20 Ultra.

Hello, I am just looking at buying my first robot vacuum, and had actually decided to get the Qrevo S. But I just noticed the Dreame L20 Ultra for only 50$ dollars more, and it seems to have a few nice upgrades such as the flex arm mopping thing.

I'm just a bit worried about the Dreame, having read a few things about the app not being as good, and generel build quality etc.

Which would you guys choose? We have mainly hard wood floors, a few carpets, a non shedding dog(alot of dirt getting dragged in though) , and no kids so not alot of stuff laying around.

Thanks!