We had tried other vacuum cleaners for 300 euros (Siemens, Bosch, Hoover) because we have cats and my wife kept saying "it doesn't clean the carpet well." We read about the Miele Cats & Dogs that "finally, we saw the color of the carpet" and we didn't really believe it.
Until the old one suddenly broke the day before yesterday and we had to get a new one. We were also considering the Rohnson Mamba 8 Pro, which is cordless, but the helpful employee told me, "if you want the carpet to fluff up and see it cleaner, not the cordless one." The cordless one is convenient, but not like the ones with a cord. So, I bought the Miele CX1. It's my first Miele vacuum. Since my wife was away, I vacuumed and, of course, cleaned the carpets. When I went inside, I saw the carpet, one that has a lot of black (which with the other vacuums remained gray, probably from the dust that stayed on it), and she finally said, "it has regained its true color!"
So yes, we are satisfied even though the idea of a cordless one seemed convenient to us, but it wouldn't clean the carpets. For floors and tiles, I believe the cordless one is fine. And for balconies. But for carpets, only a corded one