I also own the 2018 Dyson Pure Cool Link that is the basis of this new product. It services a similar sized bedroom at our Central Coast home. It has the 350° adjustable swivel, and that has been handy to vary to suit the room. It is also quiet enough on level 4 so as not to disturb sleep.
So, I know the capabilities better than most. These are well designed, well made and apart from a severe case of techno-babble (Sir James is an engineer and probably describes cornflakes as desiccated corn baked at 350° and rolled and crisped). The website reflects an abundance of marketing hype as well.
Despite that Dyson products, on the whole, do an excellent job in the right sized room – for those that don’t need to ask the price.