Product review (5 stars): Five years and still going strong.
I purchase this to go with my Haier portable dryer in the small 1 bedroom apartment I rented. My landlord didn't mind me having a portable washer and dryer unit, but here was no outdoor venting.  I purchased this because the price was right for me.  I think the only thing I may have purchased was metal brackets to hold the dryer vent hose onto the unit.  When I notice lint getting around I know I need to add water. To save time, I usually use a large measuring cup with a spout to add water to the reservoir.  If the proper amount of water is added, there shouldn't be lint flying around because it blows into the water.  I have not noticed a sauna effect, since the dryer is portable and only runs on 110 volts. Possibly I keep the heat lower in my apartment, but never has made me hot running it.  I moved into an apartment that vents down into the basement and still use this rather than having lint blow into the basement of the duplex I live in. Still works great.  I have never needed to use pantyhose over the opening and have never had a lint blowing around problem.