Thus far, I am very pleased with my air purifier. It was delivered on time. The packaging of this product is amazing. It was so easy to unbox. It is quite obvious that a lot of thought went into the design of this box, and directions for setting up were easily understood. A good job was also done in keeping me advised of just what was going on with my order. I hope the unit does the job that I am expecting it to do. So far, so good.