Product review (5 stars): Excellent Appliance.
This is an excellent appliance, i would consider it as appliance since it fits right in with other appliances. Our kitchen is part of open floor plan so food smell can easily reach anywhere in the house. The powerful suction of this hood removes the order while cooking, we can't even smell it on the 2nd floor. This hood does what it should. I would highly recommend it. The noise at the highest speed is acceptable since fan has to run at faster speed to suck the air, i would consider it is 50% as quieter then normal vacuum cleaner.  My biggest concern was the vibration and i am pleased that there is no vibration at all at any speed. I have mounted it with a very sturdy support. This support can handle three times of the weight of this hood. It looks very nice, so nice that i had previously suspended light next to the hood ended up removing them since hood itself looks good.
I have vented the air out of the house using 6" flexible aluminum pipe. I was bit worried since I did not have any straight path from hood to outer wall. It took 21 feet of pipe to vent it out. When i am standing in front of the vent the air can blow my hat off :-) I was careful and with exception of one 90 degree all of the turns are over 120 degree that makes the air flow better.