As a person that does electronic repair, let me just tell you what pieces of shit dysons are from a design standpoint.

They are the most over engineered, Fancy pants pieces of shit that are designed to sell, not to use.

Let me give you an example... One of the most popular posts on the Dyson YouTube page, is how to get the hose out of the machine. Yes that's right, they needed a fucking video tutorial for one of the most common complaints, people can't even use the goddamn things!

And then when you want to repair them, you are looking at 2 hours of meticulously dismanting a giant block of unnecessarily complicated Lego to access one tiny piece.

Dysons are absolute pieces of shit from every measurable perspective. With the exception of one thing: the motors do provide good suction, but they're nothing special, no more suction than any standard motor. They overhyped the electronic switching of the DC motor to the point that people actually believed it! It's a fucking standard DC motor!!!! Essentialy. A vacuum is not the correct application for this kind of technology.

Compare a Dyson's engineering with a simple device like a Bissell or a shark, which you can completely dismantle and reassemble in like 10 minutes.

You can't even replace a tiny hose piece on a Dyson without 2 hours, and many specialized tools.

Edit: to underscore what gigantic pieces of shit they are, I actually, through my electronics repair, got a $700 Dyson for free... Original owner effectively discarded it because it was plugged with a sock in the tube. Anyways, after I fixed it, I tried to use it in my apartment. I sold it. Fucking piece of unusable shite. As a person that does a ton of electronics repair and appliance repair and refurbishing, you start to develop a sense in your mind about what's going through the designer's head. And when I work on dysons, all I think about is how some jackass who knows AutoCAD, was given free rein to do what he wants, and you ended up with these spaceship looking lumps of garbage that nobody can use.

Edit 2: oh my God I can't believe I forgot about the fish hook connectors! On the power head of every upright Dyson that I've recently serviced... They are designed with hooks at the back that fucking catch on everything! A perfect example what I'm saying, some jack off who just learned AutoCAD, thinking he's a designer. Nobody puts backward-facing hook "styling" on a vacuum power head - except Dyson! They absolutely suck and I can go on and on but I'm going to stop now.

Edit 3: I can't stop. I forgot that my sister has run a local cleaning company for 20 years. She has rich-ass customers and she's been given Dysons by people with way too much money, which she immediately sold without opening the box. And she is absolutely NOT the only one... I can say this with surety as I often sell/fix for small cleaning companies. Professional cleaners -refuse- to use Dyson vacuums.