Product review (3 stars): Functions as Designed
This is a good product to help you save space in your laundry room.  Do keep in mind that it is for new construction or a retrofit that involves opening the walls.  I give it 3 stars because it functions as designed and is totally adequate.  I say adequate because the quality is a little lacking.  It just looks cheap, but it's going to be behind your dryer, so it's not like anyone will see it.  Additionally, the tabs used to fasten it to the framing are very thick (maybe 3/32"), which prevents the sheetrock from laying totally flat against the framing.  The vent opening is oval, not round, but that is necessary to fit it into standard 2X4 walls.  All said, it's probably a little on the higher end of what I would expect to pay, given the quality.