Bissell C4 Cyclonic
Back in 2014, Bissell released the C4 Cyclonic canister vacuum. It was a bagless, multi-cyclonic machine with a power nozzle that cost $300. I actually had one at the time and will link my thread about it below. Unfortunately, not a single video of it exists aside from Bissell's official product and help videos (which are unlisted). Another user reuploaded the product video of the C4 Cyclonic.
Personally, I thought it was a quiet yet powerful machine that picked up a lot. However, after spending a lot of time with the C4, I was not convinced that a canister was any better than an upright. That thing was just too heavy and cumbersome to be dragged around my old house with wall-to-wall carpeting, not to mention that the hose was short and stiff. It didn't follow me around very well, so I had to constantly pull it along. It came with 3 brush attachments pre-clipped to the hose, handle grip and wand, along with a crevice tool that didn't store on-board. The wand was telescopic and made of thick aluminum. The power nozzle was hard to push and pull, and its brushroll always got tangled with hair due to a small diameter. Lastly, the dirt tank was TINY and difficult to empty as debris would get stuck inside, requiring me to pull it out by hand.
Ultimately, a couple years after using the C4 off-and-on, I got tired of it, especially after replacing the carpets downstairs with laminate flooring. As part of an effort to consolidate my family's vacuum "collection," I cleaned up the vacuum and donated it to Goodwill. I simply went back to using an upright, and never bought another canister again.
https://www.vacuumland.org/cgi-bin/TD/TD-VIEWTHREAD.cgi?26294