I LOVE the "slim" design, as I think that helps the fireplace look a little more real.  Great color, design, size and features.  And this really helps take the chill out of my basement!  I even like the look of the flames.  Not too fake.  There is some sound to the fan, but not bothersome in my opinion.  I am very happy with this purchase.
(Only reason for 4 stars vs 5 is that there is a flaw on the top right outward-facing flat piece... almost like a screw almost poked through from the other side.  Not worth the hassle of returning, but a notable flaw in construction.)

Pros: stylish, functional, not-to-fake-looking
Cons: slight flaw in 1 of the pre-made pieces