I had the Philips one but after about a year it’s suction changed to the point where it’s hard for it to pick up cat litter now…
It must be able to deal with a lot of cat hair and litter… and preferably be under 500 euros.
Of course I think a corded one is better for my purposes, and I have mostly hard floors with a few small rugs.
The problem is that every year the quality decreases, so it becomes difficult to know which vacuums will still be good. For example, someone may have purchased the same vacuum 5 years ago and think it’s great but the one sold today might not compare
I am not sure about kitty litter, but I swear by Numatic, known for the Henry model. Due to its design, it will not lose suction power as much as regular vacuum cleaners as the dust bag fills up. It is extremely repairable and it has great reach (long cable, long hose).