I love canister vacs!!
I have 1 upright and about 8 canisters to my personal collection. But I have 3 other uprights that I'll be selling and 2 other canister vacs that I'll be selling. All of my canister vacuums are electric power nozzle equipped. I don't do straight suction only machines because my favorite part of a vacuum cleaner is the brush roll!!
I usually vacuum a room moving backwards towards the entrance. Therefore, I've just gotten very accustomed to wheeling the suction unit back with my foot while concentrating on deep cleaning with power nozzle. With a good designed cleaning head and system I've never had a problem with cleaning power. I used to live in a home that 2 Kirby G4's in addition to some others. I took care of her vacuums for her. The Kirby brush rolls were adjusted properly for wear according to numbers on end caps, belts were in good shape, bags were genuine Kirby and in good shape and machine was clean. I've watched Kirby videos about going one position deeper after hearing brush roll touch carpet as well. But several times after doing a room with her Kirby, I went back over it later with one of my Hoover power team canisters. The room didn't look groomed enough by the Kirby and I felt the Hoover left it cleaner! I also didn't appreciate the Kirby self propel sending my arm back so rapidly into filing cabinets and doors many a time.
I love carpet lines and grooming patterns although the rake like pattern from a baseplate of a Shark doesn't excite me as much! I'd rather see the agitator pattern than the base plate rake.
A primary reason why I prefer a power nozzle canister vacuum to an upright is that when maneuvering around furniture and behind things the only thing I have to push around is the power head that is at maximum about 3.5" high and then the wand is less than 1.75" with the pigtail cord and connectors. I don't like the bulk being pushed around with a heavy upright. I find the bulky upright always getting caught on various things or rubbing along furniture and with a soft bag machine that rubbing can cause a dust cloud emission. Just look at the pictures below- all you have to maneuver into tight obstacles is that super thin wand and it can be used with handle at numerous angles to make fitting into really tight areas fairly possible!
In addition to less bulk and easier maneuvering around obstacles a canister vac makes vacuuming under beds possible under the reclining sofas- cause I always open those out while vacuuming around sofa and many other areas. I can change from power nozzle to attachment mode in just a few seconds to grab something along a wall or cobweb up high, etc. Stairs are tremendously easier to do with a canister vac. Generally I use the upholstery nozzle on my steps but I've also just used the power nozzle on the stairs and then went back over the edges with crevice tool.
Just many options on a canister that I prefer over an upright. Now I do still like uprights and can see why many like them but for me my preference is canister. For every one time my upright gets used I've probably used a canister with power nozzle about 20 other times!!
Also big hefty Kirbys have a built in self propelled system in addition to self propelled Windtunnel and Eureka had one years back. Well every good power nozzle I've ever used the brush roll is the self propel system!!
That's just my 2 cents!
