Product review (3 stars): decent and nice looking.
Decent. There were a few issues including a screw hole that couldn't be used with the included screws. I simply used a short sheet metal screw from the hardware store in those bad spots. Seems to pull a decent amount of air even though I put a lot of ducting.
I didn't use the included flex duct and used a nicer all metal semi rigid flex duct. Seemed better.
I also noticed that there is a piece of sheet metal that looks like its a temporary shipping suppprt that isn't mentioned in the installaion manual but it has a label on it that says to remove it. I removed it and it seems to have improved flow+noise.