I'm currently using a Shark Navigator Pro Lift-away (NV585; $180); it cleans much better and is much more versatile than my Dyson. I can recommend it. I wish it used an electric motor instead of a belt for the brush, but the latter has a lifetime warranty, so we'll see. Overall I was pretty disappointed with the Dyson, although their support was great when needed.
I also have a eufy RoboVac 11S and it's great. Cleans amazingly well for twice-daily maintenance, is relatively quiet (MUCH quieter than the Roombas I've encountered), and drastically reduces the need for manually vacuuming. For $180 they're a game changer, and really do make a difference. The consumable/replaceable parts are also reasonably priced (filters, brushes, etc.).
I've also used a Kirby (powerful, built like a tank (and weighs more than one) but not worth the cost), Rainbow (way back in the 90's; wasn't impressed and the water was a mess), and Oreck (90's XL model, I think; it was relatively quiet and very light, but didn't seem to clean so well). I've never used a Miele, but between my Shark and eufy I'm set for a while; both seem to be made well (especially for their prices) and I get the sense they'll last many years. I've had a selection of Hoovers and Eurekas (bagged, not bagless) over the years, a Panasonic (bagged; great until the belt melted and made a mess), and a really nice Sears model that was powerful but the HEPA bags were stupid expensive. In the end, I recommend a Shark (get the lift-away feature, and make sure it has the XL dust bin) along with a robovac.
On a side note, if you need really clean carpets, invest in a Bissell Big Green commercial machine (recently/still(?) on sale on Amazon). Loud, pretty slow, and a lot of work, but they do a great job deep cleaning carpets, and get out stains that Stanley Steemer couldn't touch. They're not super expensive on sale, and it should be the last carpet cleaner you'll have to buy. Use Bissell's commercial solution with it and your carpets will look like new (YMMV, of course).
Edit: sorry, just re-read your original post. The hose and attachments on the Shark are OK, but can be a little difficult to maneuver sometimes. If you're planning on using them daily/multiple times a week, you might want to try them out in a store first to ensure they'd work for you.