The install went well and the unit looks great.....we followed the manual that came with it, but it only gave basic instructions that did not work well.  I finally went on line and found the actual user manual for the 500 that was 35 pages or so versus the basic of 17 pages. Once we could follow the manual and had the dryer liquid in the unit all went great.  I do not understand why you would not put the complete manual in the unit....making the customer print up the manual does not seem like a good way to start a business relationship...my wife wanted to return the unit when she could not get it to work using the basic manual?