Product review (4 stars): you'll like it! It's a good-looking unit
Try it, you'll like it!
It's a good-looking unit, the 3-speed fan is quiet enough for me, and the halogen lights are perfect.
It is 29-7/16" wide, so you'll need a couple of 1/4" spacers to fill a 30" space unless you don't mind the gaps.
The exhaust flange is 3x10 rectangular, so I had to adapt it to my 7" round duct, Once that was done, installation was a matter of minutes.
The product description didn't say that it had a rectangular exhaust port, so that was a small surprise. Maybe that's the expected standard nowadays and I should have known? No big deal. I'm very satisfied with this purchase.