Miele Complete C3 Alize PowerLine vs iRobot Roomba S9

Its power cord is short, so you might need to swap outlets when vacuuming larger areas. If you're looking for a well-built, highly maneuverable vacuum that delivers strong performance, it's a great option.

I’m currently trial running several auto-empty vacs for our upstairs which has our 4 bedrooms and all carpet. Currently a few weeks into the Roomba S9+ with empty bin and let me just say… while it does a good job picking up on our low rise carpet, the app and technology feels about 5 years behind the Roborock tech and app. If anyone cares about specifics feel free to ask but I’m constantly surprised how poor the app and tech work. Ghost rooms, connection failures, inaccurate post run results… considering how long iRobot has been in the game I’m just really surprised it’s this far behind

The best vacuum for hardwood and carpet with a canister design that we've tested is the Miele Complete C3 Alize PowerLine. It performs exceptionally well on bare floors and cleans an impressive amount of debris on low and high-pile carpet, though you may need to make another pass to fully clean very fine material on this surface type. It has a seven-level suction power control feature that allows you to adapt to many different surfaces, from curtains to high-pile carpet, with the twist of a dial.

Even though the area was completely clear. The problem is due to the lower clearance from the upgraded suction unit, the edge brush get's deformed and smacks the bumper and screws up the sensors. One could probably modify the brush, but I didn't want to deal with it. iRobot says the s9 has 4x the suction of other Roombas, I don't doubt this

This vacuum feels very well-built, with a high-grade plastic canister body, dense rubber wheels, and a telescopic wand made of stainless steel. It's also remarkably easy to maintain and isn't very big, meaning you can maneuver it in tight spaces with minimal effort. The vacuum has an onboard storage compartment for its dusting brush and its crevice and upholstery tools, and its power cord retracts with the press of a button.

If I try to mechanically / physically raise the spring contacts, I risk breaking them and making it all the worse. Those should be able and EASY to replace, without needing to disassemble the whole vacuum.

It's also capable of dealing with this kind of debris on the occasional low or high-pile rug and has a HEPA filter to trap allergens as you clean. This variant uses Miele's AllTeQ Combination floorhead, which doesn't have a brushroll, so you don't have to worry about pet hair getting tangled in it.

This robot vacuum has improved in many areas. Great suction, flawless operation (most of the time), and wonderful battery longevity. Sadly, it has regressed in others. Namely, the filtration system; why have they decided to sacrifice the pre-filter mesh and opt for more frequent cleaning and ultimately filter replacements

Its hose is short, making it hard to clean high-mounted shelves. Otherwise, its dense feature set and sturdy, easy-to-maintain design make it one of the best vacuum cleaners that we've tested.

I was worried that the new D shape would make it a little more cumbersome for fitting around chairs and table legs. But if you look at it, the Roomba ...

The best suction vacuum we've tested is the Miele Complete C3 Alize PowerLine. This premium vacuum has good suction performance through its floorhead in its 'Max' suction mode, which helps deal with stubborn messes or debris stuck in cracks. It also delivers fantastic performance on bare floors and does a great job dealing with debris on low and high-pile carpets. Its seven-level power adjustment function lets you tailor its suction force for everything from window curtains to high-pile carpet with a few button presses

**Roomba S9+:** More powerful but didn’t feel worth it for the price. Didn’t have a lidar. 1099$.

Miele vacuums tend to look premium and be very well-built, as well as easy to maintain.

The Roomba 960 does that just fine, as does the RoboRock S6 Pure (which I also got after returning this). So IMO there is no legitimate excuse for this fundamentally flawed mechanical design of the Roomba S9.

I guess on higher priced models you can get this but again this is where it is confusing to pick out the model you need. Overall I think it was a bit expensive for a vacuum and for not having the powered handle/floor piece (sorry I can't remember what it is called). At this price you would think it is a high end vacuum but for the Miele line I guess it is only mid-range.

For the price it is a HUGE waste of money. Do your self a favor and buy a cheaper one. Hopefully the quality hasn't gone down on them.

I'd just like to add how impressed I am with the filters. Oh, and the product description claims this is 'Petrol' color, but despite dropping this much money on a vacuum I gather you get whatever they send. In my case it was 'Pacific Blue,' which is closer to green than blue. I don't care, but just FYI!

I like the fact that I can program when and where it cleans. The only thing I don't like is cleaning the filter as the dust flies everywhere when it is tapped against the waste receptacle.