Deciding between Roborock QRevo S and QRevo Edge

I've looked through a lot of reviews, and at the current prices these seem to be two strong contenders. My local pricing shows about $300 difference. I don't mind spending this extra on the edge, but after reading up on the differences I'm not sure if I even need the extra features?

My requirements are pretty simple. The place is less than 1000sqft, one floor, nothing to climb over. I want good suction, but even more important is mopping performance. There is quite a bit of furniture to climb under, but it all has a good amount of clearance. But that also means that there is a large amount of legs to vacuum around.

Then my other most important requirement is that the thing is as self-maintaining as possible. I would prefer to only have to tend to it about once a month.