I already have an earlier model and was so impressed I bought this one to have a level up and down. With three older cats, they do a great job with their fluff as well as general cleaning. This newer extreme model seems to last longer on a given battery charge. With spare batteries from my cordless tools. I never run out of charge for any of them. I also bought a Black & Decker quick charger for these batteries and it only takes 30 minutes to charge. It's worth the money for both vacuums and my tools.