Product review (4 stars): Not the quietest but a great inexpensive alternative
At 1/3 the cost of some of the name brands that we found through Sears or Best Buy this unit looks just as nice and works very well.  The fan is a bit louder on level 3 than I would expect (almost impossible to converse with someone standing near it) but the suction is very powerful.  The LED lights were a concern for me originally but they are actually much brighter than what other reviewers led me to believe.  They are certainly more than adequate to cook by and much brighter than my previous late 90's hood light that had the frosted and grease covered plastic over it.  The unit is fairly easy to clean with just a damp cloth but we have not tried cleaning the vents yet as we do not do a lot of greasy cooking under, usually just steam.  The steel of the exhaust port is easy to simply wipe down with a mild cleaner but the glass does collect a lot of dust.  You should expect to wipe the glass down at least once per week especially if you have any pets (I am not sure how it is possible but my husky finds a way to have some of his hair settle on top of the glass).

Overall this unit performs very well and meets our expectations and needs but there a few changes I would like to have in it.  The clock is 24 hour style only and cannot be changed to 12 hour.  For most people this is ok but might be bothersome to others.  We wish the lights had a dim setting that could be used as night lights perhaps but instead they are either on or off. We wish the highest suction setting was a little quieter.

In response to all the people that said the instructions were terrible or not adequate, I am not sure what they were looking at.  The wording on the instructions does seem to suggest that they were put through multiple levels of a translator website but that doesnt matter much.  Just looking at the pictures and looking at the parts it is rather simple to figure out the only way that it is possible to put the thing together.  While some screws may be difficult to reach or the unit may need to be flipped over once or twice it was not overly difficult to assemble.  The hardest part is definitely getting the thing hung on the ceiling once the bracket is attached.  I suggest you have at least two strong helpers as the thing is heavy and will need to be held up long enough for someone to attache 4 screws around it at least.  I would not trust the screws that they sent to hang it on the sheetrock ceiling and would suggest that you do what I did and reinforce the mounting plate by adding wooden braces in the ceiling. I was replacing a cabinet mounted unit so I already had my ceiling open and didn't want to trust sheetrock to hold up this units heft.

Overall a good product at a great price compared to the $1000.00+ units I saw elsewhere