Product review (5 stars): Thor Apex Stacking
I ordered a Apex by Thor for my small apartment a couple of months ago.  My contractor told me that I could not install a vent in the closet where I wanted to put the machine because the vent would be too long.  I had to go with a ventless dryer.  The Apex has worked great.  In fact, it takes less time to dry than I expected.  Since I only had a few choices when it came to ventless dryers, I was a little worried ordering the Thor machine....but it has turned out great.