Product review (4 stars): Seems good so far
I have only been using this item for about 2 weeks now, but it seems to be holding up great.  Other reviews are correct, some of the edges are a little sharp (it is metal after all), but a quick hit with a metal file takes care of it (or you can paint/powdercoat it).  It doesn't come with any mounting hardware, but there's plenty of space in the back of the box to drill a few holes for screws.  I ended up just using Tapcons to secure it to our basement wall.

Definitely plan on supporting the duct runs before and after the trap with some straps or mounts of some sort, since you're kind of rigging your own mounting system.