Product review (5 stars): Just about the coolest invention I've seen (when it comes to dryers)
My dryer is a double-high (regular dryer on the bottom with a sweater cabinet dryer on the top) and has always been very difficult to hook up to the external vent.  There were only two choices for a connection: either use 3 feet of hose (which would get all kinked up when the dryer was pushed back) or use a short piece of hard pipe and perfectly align the dryer with the outlet when it was pushed in.  Because of its height, you could not look over the top to get the right alignment, so the washer had to pulled out to align the dryer properly.  This was usually a two or three-person operation.

The MagVent ended all that.  The installation was easy.  It actually took more time to clean up the mess behind the dryer than to actually install the MagVent.  The bracket and magnet slipped right on to the external vent and a clamp secured it in place.  On the dryer side, the flexible duct had to be shortened a little, but after that, it slid right on to the dryer and was secured by another clamp.  The dryer was then just pushed back into its slot and I could hear the clunk" as the magnetic coupling closed with perfect alignment and a good seal.

It was quick, easy, and it took only one person to install.  With such a good seal, I do not anticipate ever having to pull the dryer out to clean up the stray bits  of lint that used to escape with the old coupling.