Unit installed pretty easy.  If you have 9' ceilings, you are stretched to the max on the adjustable chimney section.  As others have stated, the LEDs have a blueish hue.  Sound it barely noticeable on speed 1, speed 2 is tolerable, speed 3 is just as loud as 2, but a different tone.  The loudest part is the 'beeps' when you press one of the buttons for speed or lights.  Best part is I can cook without the lingering smell and grease.  

My install I went a bit off script on.  I had to cut a U in the chimney stack in order to vent to the outside of the house.  I did not want to install a soffit, I could not go up, and I could not go through the ceiling.  My system works like a champ.

I knocked it a star as I had a heck of a rattle on speed two only.  Found out one of the Baffles I was shipped was slightly bent (manufacture replaced), and the hood was missing 2 rivents that join several pieces of stainless steel together.  I was able to use some small bolts and make the rattle go away.