Product review (3 stars): VERY DIFFICULT INSTALLATION
THIS WAS THE MOST DIFFICULT INSTALLATION I HAVE ENCOUNTERED IN 45+ YEARS OF DIY-ING.  IMAGINE WORKING IN A SMALL BOX WITH VERY LITTLE CLEARANCE TO MOVE AND EXTENDING YOUR ARMS SO YOU CAN BARELY HOLD ONTO THE NECESSARY TOOL.  OH, I FORGOT TO MENTION THE IMPOSSIBLE CONTORTIONS TO SECURE THE VENT TO THE WALL OUTLET. IF YOU LOOK AT THE ATTACHED IMAGES, YOU WILL GET A SENSE OF WHAT IS INVOLVED.  ALSO, IF YOU DO DECIDE TO USE THIS, MAKE SURE YOU TAPE IT ON ALL THE SEAMS WITH THE ALUMINUM FOIL SILVER TAPE TO INSURE AN AIRTIGHT FIT TO PREVENT THE DRYER LINT FROM ESCAPING.  THE FINISHED INSTALLATION IS WORKING, AND I WAS ABLE TO MOVE THE DRYER CLOSER TO WALL, GIVING ABOUT THREE MORE INCHES IN A VERY SMALL WASHER/DRYER AREA.  WOULD I DO IT AGAIN?  ABSOLUTELY NOT.