The self-cleaning roller mop is the part that sold me, and it actually works — no mildewy smell after a week of daily runs on my tile floors. I empty the water tank maybe once every few days, which is way less fuss than I expected.
I've been running it every morning on our kitchen tile and the roller mop actually rinses itself as it goes, so I'm never scrubbing a stale mop pad by hand anymore. The dual water reservoir means it keeps going through the whole floor without me refilling halfway.
The self-cleaning roller mop is the feature I didn't know I needed — it rinses itself with the dual reservoirs while it works, so I'm never scrubbing a stale mop by hand afterward. Ran it across my kitchen tile twice this week and the floors came out genuinely clean.