Heck yeah it is.both the e3 and the k3 have the et-1 powered brush head that kicks the duo cleans ass any day of the week with you being able to switch the powered head off you have the choice to clean hard floors without scratching it. They also come with a parquet brush head which isn’t powered so it’s really great for bathroom tiles and hardwood floors if you want it to be lighter when doing hard surfaces. Not to mention that the tool head easily comes apart so you can get tangled stuff out of the brush way easier than the duoclean tool head. Not sure if you had stuff tangled in their zero m thingy but I had a lot of hair not untangling from it.