Product review (5 stars): Great
Due to the construction of my house the dryer vent is about 20 ft long with several turns.  I normally air dry my clothes but use the dryer in a pinch.  Thought Id give this a try.  Washer and dryer are located in a daylight basement bathroom.  I keep the fan on, window cracked and we have a wood stove.  I do not have an issue with moisture when using the dryer. Bonus--my clothes dry fast! Solved my issue for sure!