I received the range hood November 30th. Finished installing it on Dec 8th. I had to purchased 2 additional duct clamps - unit only came with one duct clamp and it was defective. I had Corian back that I had to drill though and used flip toggle anchors for back wall stalled. The template provided is good start - just make sure double check measurement before drilling. (Corian wall) The unit is heavy - require 2 people in addition to cabinet jacks. The remote has to be next to the range to work - like within 1” os the wireless symbol. Basically useless. Other than that - I do like the CFM ranges and looks nice and everything works well.