If you're getting a BIFL buy-once-cry-once vacuum, I'd go straight for the Miele cannister vac. I went into an ADHD deep dive on vacuums a year ago when my own Shark needed replacing. Splurged on one and it completely changed how I feel about vacuuming. Of course, I'm 4'11, so ymmv on that, but using a good cannister vac that is lightweight VS pushing around something big and heavy makes a world of difference.

Plus, I like that it uses bags instead of a cannister; I was tired of emptying the cannister and getting a face full of dog hair and dirt that I then also had to clean up (again). That may also be personal preference, though.