Bought it three months ago and finally got it installed. Overall, the instructions we pretty easy and well described. Lights are nice and bright. 4 stars is because the double lines when placing the charcoal filters are barely noticeable on the actual blower. The instructions make it seem like they are obvious.  Nope. They look like tiny scrapes. I thought they initially had erroneously left them off. Anyways otherwise uneventful install.