Product review (3 stars): It works fine and does what it's supposed to do
Installation was a real bear.  The dryer sits in a corner of the room and it was very difficult to reach and attach the periscope.  After about 45 minutes and lots of swearing, the unit was finally attached.  It works fine and does what it's supposed to do.  My wife likes the extra space in front of the dryer, especially since our laundry room is quite small.

I'd give it a higher rating, but as I stated at the beginning, installation was a real bear.  Although, maybe if I had longer arms...