Product review (5 stars): Expensive hood on a buyer's budget.
Purchased from Amazon, the QML30SS was delivered by Fedx from Houston TX in a plain brown box which was poorly taped.  Fortunately, there was another box inside that one and it was the factory Broan box which was sealed and new.  I was a little surprised that even inside the Broan box there was very little styrofoam around the hood.  Anyway, no dents, dings or dimples so all was good.

The unit was very light weight considering its appearance.  The metal is thin and I dare say flimsy until it is installed where then the mounting to the underside of a cabinet give it rigidity.  I should add that because of the bottom of the hood being closed as opposed to many other hoods on the market, that closed bottom gives the hood additional rigidity and strength.

Installation was a project for sure.  I had to replace the shims under the cabinet to accept the hood mounting screws.  Making new shims added at least a hour to my installation.  I use the hood in the non-ducted mode so I didn't have to route duct work or cut holes.  When installing, I found it easier to hold the hood up to where I want to mount it and mark the holes for the mounting screws rather than to do all the measuring necessary to find their location.  By doing this, I had a very perfect fit (requires someone to hold it while another marks the screw holes).

I purchased a Broan carbon filter (required for non-ducted installation) and two Broan light bulbs.  The light bulb sockets are attached to the underside of the hood so that when you unscrew the hood bottom, you can lay that bottom on a table and install the lights using the adjustable brackets so that the bulbs are perfectly flush with the bottom of the hood before you reattach it.  Knowing now that the light sockets are adjustable, I wish I had purchased the cheaper, non-Broan, light bulbs at half the price.  Not all bulbs are the same length so I took no chances and bought the over priced Broan bulbs, regretfully.

The hood is 29 7/8" by 17 1/2".  The fan is plastic and the fan motor isn't too loud as others have said.  The fan isn't anything more or less than I expected for a hood of this caliber.  The low speed might be adequate to take care of a simmering smoke and the fast speed would be adequate to handle larger plumes.  If you are looking for a hood that will suck the pancakes off your griddle, then move on, this hood isn't for you.  But, this was perfect for me in that it was styled very much like the expensive Bosh models, does the job of any hood in its class and I absolutely love the fact that you can wipe clean the underside so no grease ever builds up.  The lights are placed very well on the hood and illuminates the stove top evenly.  The light "high" setting is bright white (daylight color) and the "low" light level is more of a antique white or yellow light in contrast.  It is a great night light in the kitchen that doesn't blind you and adds a bit of warmth to the room.

I didn't want to invest in something that was more expensive than my stove and I didn't want to stuff a $40 dollar hood into my kitchen either.  This was the best compromise.  Expensive looks and does the job at half the price.  Can't beat that.