Having a mop-capable robotic vacuum myself I have a completely different experience. It is simply too stupid(despite being a smart model with camera and room mapping LiDAR) and get stuck at carpet edges and under chairs.
If I want to use it on schedule I need to perpetually have all areas I want it to clean adapted to robotic vacuuming. Which I don't, meaning I have to manually go over the entire area and pick up objects, move chairs, move the small carpets and then empty the all too small storage bin on the robotic vacuum after it have done its rounds.
And don't even get me started on the mopping function.
The end result being that if I take a regular vacuum in my hand and do the pre-robot screening round, I've managed to already vacuum the entire flat with a much more powerful machine in less time than the robot vacuum process would've required.
Yeah, I demand more info about the mop from the OP. What model do you have and are you completely satisfied? I was under the impressionthat most of wet mop models just smear dirt everywhere instead of really cleaning a dirty floor.
Coming downstairs in the morning to a completely clean floor is definitely a tiny bit of that magic.