Product review (4 stars): Hear the fan noise, See the lights brightness video
<div id="video-block-R3RMQSQS9QFD4L" class="a-section a-spacing-small a-spacing-top-mini video-block"></div><input type="hidden" name="" value="https://images-na.ssl-images-amazon.com/images/I/C1l1kqMGBUS.mp4" class="video-url"><input type="hidden" name="" value="https://images-na.ssl-images-amazon.com/images/I/81aCUUZzHAS.png" class="video-slate-img-url">&nbsp;I think this unit is a great value if you are going ductless. I included a video to see the brightness of the lights and hear the fan noise level.  I would caution you if you installing a duct because the design of the chimney and vent connection doesn't accommodate for this out of the box for this type of installation so I ended up needing to manufacturer a simply bracket.

UPDATE: It turned out real nice after making up a custom little piece of wood to mount the bracket on and drilling a couple of holes in the extension piece. Actually it turned out better looking because I flipped the extension upside down and hid the vent slots since I didn't need them with a duct installation so it looks real clean. I have photos to show how the chimney extension looks installed without slots exposed ;-)