Four (4!) hours to dry a load of small towels. How is that  energy saving or good for the towels?
I next dried one sheet and two pillowcases - 2 hours. At 58 minutes I checked them and they were OVER -dry. If you want to keep checking the dryer every few minutes to make sure your clothes aren't over-dried and ruined or if you like paying more to your utility company, buy this.  
My regret is I didn't buy a Bosch, which I had before. Now *that* is an excellent machine and worth every penny.