The Scooba 450 could be a good floor cleaner, and it has indeed cleaned my floors spotlessly on several occasions, however its design is fundamentally flawed. Unlike previous models, iRobot opted for a 3-pass cycle where the robot cleans the room, then washes and finally squeegees dry - in contrast to previous models where all of this was accomplished in a single pass. This causes two problems: 1. If you live in a hot, dry climate, much of the water will have already evaporated by the time the robot comes around to dry the floor. I bought the Scooba in the winter and my opinion of it was better until summer came around. I try to combat this by running it early in the morning or late at night. 2. Whether or not the Scooba cleans your floor well is entirely down to random chance. This is because it is designed to bounce off objects in the hope that it will eventually cover the entire room, which means that the robot has no idea where it has been and frequently neglects to dry areas that it has washed, leaving the dirty water to dry. I have a dark floor with skylights, meaning that any dirt or marks on the floor are highly visible, and often after running the Scooba the floor actually looks dirtier than when I started. The only way to get around this is to make it wash the floor over and over again (after a full charge each time of course) in the hope that the random nature of the algorithm eventually covers the entire floor. I would imagine the Scooba works brilliantly in an empty room situated in a cool, humid climate, but I would definitely not advise it in a dry climate or any moderately complex room. I really wanted to like the Scooba because the idea of having a hard floor cleaning robot that doesn't require pads is extremely appealing. If iRobot can release a new version with a 1-pass cycle I would happily give it 5 stars, with bonuses if they can make it quieter, have longer battery life and make it more intelligently navigate a room.
Pros: Doesn't require pads, Easy To Use
Cons: Gets Stuck Easily, Long Charge Time, Misses Spots, Noisy
My kitchen gets a lot of abuse, and I hate to mop. So it was pretty filthy when I received my Scooba 450. Session #1: See Service Notes below. After the failed session #1, I did not have the heart to move all the big furniture in the kitchen again, so I hand scrubbed just those areas and got them clean, then moved the furniture back in. But I intentionally left the high traffic areas alone so I could see how well the Scooba would do. Session #2: After the software fix described elsewhere in my review, I set the Scooba down in the middle of the kitchen and told it to start. It seemed to concentrate along the walls more than the center of the room, and did really well there. It does not seem to get right up to the walls due to the design of the robot. So I will occasionally have to hit those areas with a mop (very occasionally). I watched it hit the high traffic areas in the center of room several times. At first, I thought "It does not look like it is going to get it clean." But then I noticed that every time it went through, it took a little more dirt off. I should add that there was weeks of ground-in filth in the center. At the conclusion of the mopping session, I was pleasantly surprised at how much it had actually removed. I expected I would have to do a thorough cleaning by hand to get it all. But it got a lot more than I expected. I decided to do one more session to see it it could get the rest. I moved the virtual wall to force it to concentrate on this area, then set it to work again. By the time it was finished, it had removed about 95% of the dirt. I then went over it with a Swiffer mop with a lot of elbow grease and heavy pressure, and found it looked just about the same as before I used the Swiffer. I think to get that last little bit of ground-in dirt, I am going to have to use a scrub brush and ammonia. Once it is completely clean, I am confident the Scooba will be able to keep it clean, as long as I run it often enough.
Pros: Cleans Effectively, Easy To Use, Hassle Free Operation, Large Debris Bin
Garbage design that should not be called an improvement
on June 20, 2015
Posted by: MikeV
from Miami, FL
I have had several Irobot 300 and 500 series scoobas that have always worked well till they decide to buy. This new and improved (I feel insulted by this) model 450 is a piece of garbage. I have been through 2 units, done the firmware upgrade, and I get at least 2 1/2 cups or more of clean water back and i'm fortunate if I get a demitasse of dirty water after cleaning the maximum size room of 300 square feet. Your engineers and product managers should be ashamed to release this abomination of a product to the public. Don't waste your money. I'm sorry I have ever done business with Irobot.
Pros: NONE
Cons: Does Not Clean The Floors, Does Not Do The Job