Loved it until there was a short in the power where the cord connects into the unit.
Update:  received a replacement dust control fan today out of the blue.  Very impressed that the company is standing behind their product.  A little louder than I wanted but when you are using the efile you don't notice it.  Noticed a huge difference with dust since I started using. Then I set in on its side while doing chemical services and it has really helped with the fumes!  But the last week it has had a play in the power where the cord hooks into the unit.  Have to shake the cord a little where it hooks into the fan.
Rating: 4 stars