Hi I own V8 model now, well actually I get rid of it and my parent use it now. I decided to buy a new one as this one is really NOT great for pet hair and mine actually. I have 5! pets and v8 can't handle all they shed! I found Hover Linx on a website in google https://pickadvisor.org/best-vacuum-for-long-hair/
and this is really my best investment! It's not heavy, deals with hair (cloggs of coures but not so often, so it's ok) and cheaper than Dyson. I've read thousands of reviews on amazon, ebay and other websites and they were mostly positive.
If you have only 1 cat I think there will be no problems at all!