Bryon and his crew did a great job. I believe the time required for the job was under-estimated or he needed another helper, but he got it done in 2 long days. He also had to completely change the estimated layout because of the available height. He and I worked together for a layout that works well to preserve storage space access and good airflows. One comment is that, control dampers in the branch lines are great, but are not easy to use when covered by multiple layers of tape and insulation. Better access would be nice. Overall, very happy with result and the install team.