We bought ours awhile ago, I can't remember the brand, but it was supposedly the best (and most expensive) one that Godfrey's had.

TBH I hate it. It works well... But it takes forever to clean the floor! We have white tiles which get pretty marked up. For it to work well you have to move it pretty slowly, which means it takes ages to clean the floor. Yes, it's pretty easy and you don't work up a sweat, but I get it done in half the time using a traditional mop cos you can work fast with it.
Miss e have you tried putting new clean microfibre pads on it? Changing frequently allows you to keep the pads dry and clean and not push the microscopic bits of dirt around the floor.

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