iRobot Scooba 450

Buy a mop and bucket – 2 years on from purchase of 450 model. I would not purchase again. Its noisy. It takes forever to clean. The cleaning fluid it needs is very expensive to buy. I would be quicker with a mop and bucket. There is reason that this product that not taken off big time and not usually available in the big stores i.e. Harvey Norman, Good Guys. It does do a good job of cleaning but the filter clogs up quickly and need to be unscrewed and cleaned a lot. This latter point was not covered at all in the instruction book and I had to contact the vendor on this point. It only got 3 stars because it does wash the floors really well but I will not be replacing when it dies. It does not look like dying any time soon but then I only use it about once every 3 months because of the problems described. I will not be purchasing any more replacement cleaning fluid but going to try sugar soap in it instead.