Roborock Q8 Max a good budget vac? Self emptying really desired?

I am about to buy my first robo vac and after some research the Roborock Q8 Max seems to be a good budget choice, currently priced at 230€/265$ (Sweden). I live in a two story house at 130sqm/1400sqft btw.

First of all, feel free to tell me that I am stupid and that I should probably buy vac X or Y instead.

Other than that, I am also considering the self-emptying version (priced +30%), however from what I can understand that means that I will have to keep buying dust bags, which I am sick and tired of having to do for my crappy regular vac. I would rather just empty the vac manually a bit more often. Or is there some magical life changing function of the docking station that I am missing?

Cheers!