BIFL so far: We’ve had a Shark Rotator Lift-away model NV501 for about 8 years and have had zero problems. With humans with long hair and a dog, this is the first vacuum that is both effective and durable. It comes with lots of attachments, and the lift-away allows for converting to a canister vac on wheels. One of the filters is washable, and replacements are available online along with additional attachments. My sister-in-law also has the same model and has had a good experience as well!