Product review (4 stars): Good performance and aesthetic.  Installation is a real challenge though!
Once you get past the mounting task, it's worth it!  But first, it has to be mounted.  There are many flaws with the product as received:

1. A sizable dent in one corner of the sheet metal housing cover which doesn't affect the final appearance, function, or assembly process.  I was able to get Amazon to issue a small discount for the defect.  The dent looked obvious that it had come from handling in packaging.

2. Two of the four vertical hanging brackets are a completely different design as what's in the instruction booklet.  They are actually beefier and provide better side load support for the unit once hung but the product description or instruction booklet failed to list the design changes.

3. Imperfection in the two sheet metal outer covers did not allow them to slide into each other smooth.  But I overcame the problem with some candle wax and persistence.

3. The instruction booklet is a joke and I literally ignored it for the process.  Since my ceiling is rather low (less than 8 feet), I had to improvise in the assembly/installation process to make it all work:  First, assembly the vertical hanging brackets to the housing.  Then attach the included flexible vent duct to the outlet in the housing using screw and duct tape.  Then assemble both outer walls into the unit, leaving the inner one positioned almost at the top leaving only enough access room to install and tighten the side screws to the ceiling plate.  Then, place the entire unit in location underneath where it will be mounted.  At this time, I already had the ceiling hole cut, ceiling plate mounted.  Then, stretch out the duct and feed it through the ceiling hole and secure it so that it doesn't fall down during installation.  Two other persons helped raise the unit closer to the ceiling, then feed the cord through the ceiling hole, then raise the unit up further to engage the four vertical legs with the ceiling plate.  Install all screws.  Last, push up the inner cover toward the ceiling and screw it in place.

The final appearance is very pleasing:  stainless steel cover, smoke clear glass top, and black control panel are very appealing.  The fan speed at high is very commendable and I could see vapor getting sucked into it.  The preset fan speed for the variety situation can be useful.  The 4 LED lights are white light and can be brighter as they are a bit weak.

There is a one minute delay once you turn the fan off with the fan continuing to run.  It's probably good for the electrical controls of the unit.  It's no bother.