Product review (5 stars): Best option for in-room venting I have found
I think it's the best option if you have to vent into your room.  Easy to clean, and it's cleaner (less lint flying around the room) than using buckets like many other in-room venting options.  I don't put water in the slide out tray, and just use it to catch the lint when I turn the dial, and I empty it when it starts to get a fair amount of lint in the tray.  I'd like to see a bigger lip handle on top that was easier to grab in order to open the screen door.  I had to sand the plastic catch down inside (very little, don't over sand it), so it was easier to open.  But you don't often need to open the screen door. So don't bother unless you want to.  I've recommended these to everyone who has dryers that are not hooked up externally.  It's much better than the bucket types.