I needed a vacuum but was at a loss because there are so many to choose from.  But one day in the doctor's office, I saw a clip of an asthma prevention program in California and they were recommending Eureka because unlike other vacuums, it doesn't blow the dust back out. Although this is not the exact same model, I like the portability of a cordless and it's a strong vacuum.  I have two dogs and I can get the whole apartment clean and it doesn't even lose its charge so I haven't used the spare battery yet.  It's easy to maneuver and there are two settings, one for carpet and one for bare floors.  It's also relatively quiet.