Have got a Roomba on the way from ebay and I am already tempted by a scooba 
I would love to hear from anybody who has one and how well it works. I find it hard to mop the floors as if I am home I generally have little ones around me and the floor ends up wet and slippery. I also struggle to get under the dining table etc clean as there isn't much space to get round it all and/or move it around while I am mopping.
I have seen they can be bought for £150 ish on ebay which I am happy with if it actually works!