We have 3 of these vacuums and they are awesome. We have a large 2 story house with mostly tile and wood floors. We have 1 dog and 3 cats so picking up hair and the excess cat litter that gets stuck in their little paws is a must for me. The 2 vacuums we have on the first floor run daily except for the day the housekeeper comes to clean the house. The one on the second floors runs every other day. Our housekeeper loves the vaccums also and calls them her little helpers cause there's way less pet hair on the floors when she comes to clean. We have two RV750 and one RV750_N. I really like the RV750_N because it runs longer than an hour and never gets stuck under furniture. We just got a new RV750_N to replace our original RV750 that cleans the first floor of the house which includes living room, kitchen and dinning room. We need a vacuum that runs a little longer then an hour to properly take care of the complete 1st flor area. We are planning to give our older RV750 to my mother in law.