Maybe they've gone back to simpler machines due to all the complicated electronics of the older renny's and guardians. It costs a fortune to fix one of those if the hose and inner electronics of the canisters fail. I know, someone gave me a renny and I was excited until I found out it was going to cost over 200.00 to fix it up. Needless to say, it's in my basement with other challenged machines for future restoration. A new power nozzle design might've been a good option on the new models, I've never felt like they've done an exceptional job at deep cleaning, same with their uprights.