Most wet and dry vacuums clean your floors well enough. Where they differ is what happens afterwards, and that is usually left to you.
The problem with self-maintenance
A wet and dry cleaner ends every session with a dirty, damp roller. On a basic model you rinse it under the tap, squeeze it out and hope it dries before next time. Skip it, and the machine smells and the roller stiffens.
Hot water, then hot air
The JONR H2 Pro cleans its own roller with hot water at the dock and then dries it with warm air. Hot water lifts residue more effectively than a cold rinse, and the drying step is what actually prevents odours.
It is the combination that matters: cleaning without drying still leaves a damp roller, and drying without a proper wash just bakes residue in.
One pass, then hands-off
Paired with strong suction, the H2 Pro handles dry debris and wet spills in a single pass, then takes care of the cleanup on the dock. You refill clean water and empty dirty water, and that is close to the whole routine.
Who benefits most
If you have pets, young children or simply clean often, the self-maintenance is the feature that saves the most time and keeps the machine pleasant to use over months, not just on day one.