No, I mean Dreame ;) (Text too short...)
Interesting. I assume the manufacturer intended to cause confusion xD
I have a Dyson V8, but I still prefer to use my good old Miele bag vacuum cleaner with one - and this is crucial - Elras multi nozzle.
Yes, cordless is nice, but I find the Dyson's handheld part quite heavy and the constant button pressing is a totally unergonomic hand position for me. I'm glad it only has 15 minutes of suction power; by then my thumb falls off anyway.
And without a floor nozzle, it doesn't work at all (at least with my model). Meaning, if I just hold the tube somewhere (without attachment), it doesn't even vacuum away cobwebs. With my Miele, it sucks in the cobwebs and even the paint from the wall :D
Our V11 comes with a multi nozzle that detects whether you are vacuuming hard floors or carpet.
Regarding pressing the button. Yes, that sucks. We bought an "adapter" for about 8 € on the big river (Amazon, presumably). Now it can be turned on and off as usual.
As for suction power, I can't judge due to lack of comparison. All I can say about the V11 is it sucks everything away. In Eco mode, the thing lasts a whole hour and still has enough power; for cobwebs, we just switch briefly to Power mode. Vacuuming the whole house, about 200 sqm, works very well with it. Just in case, we have a second battery, which we never needed so far.
We researched quite a bit beforehand, and if you study the relevant sites (yes, I didn't know either, there are entire sites dedicated only to vacuums), you read that apparently a lot has happened in model development. Especially in terms of suction power and battery.