As an owner of a Shark, I don't agree. The ergonomics are great, controls/buttons are grey, everything else is red or black, sounds like you just made a poor choice in model and/or colors. Mine is a corded vac and just works. Replaceable, washable filters, switched power, handles egregious amounts of pet hair (Husky) and a lift-away tank. We replaced a cheap Bissel vacuum with the Shark, and the Bissel was great, it was just really hard to clean stairs with it.

I think of a Dyson as more of a status symbol, like the latest Mac Book, a watch collection, or a Porsche. Dyson owners like telling people they have a Dyson. Most people just need things to work well for their use case, be reliable and affordable.

The saying goes... "Fast, reliable or cheap. Pick two."