product arrived earlier than overstock's committed date. product arrived in perfect condition. product does what it claims. there are higher performing hepa filters on the market; but if you're concerned about the unit taking up space (this one is wall mountable) and overall appearance along with performance, this is the best one out there. downsides: it comes with a higher pricetag. we purchased this for our infant's bedroom -- he was showing mild signs of allergies to either dust or dander. this hepa filter filters out both. he's coughing much less and hasn't had an attack since use of the rabbit air. the caviat; we also removed carpet from his room at the same time.