Product review (3 stars): Does what it says, however...
The reason for 3 stars and not 4 or 5 is the length of the hose. In my install I cannot go beside the dryer on the floor. The riser for the controls means I cannot mount above the unit. Certainly the price is low and does save venting outside. And since the hose is adjustable, 8 ft or even 2 Meters would work in more installs than the 5 feet sold with it. I used the non-re-usable bands to find out the hose is too short for above dryer install. Now I have get 2 new bands and new hose. Charge a little more and make the hose longer to fit more installs.

I get 5' costs less than 8'.  Charge more and fit more installs. Avoid sub-happy ratings.