I've had my dryer about 5 weeks now.  I'm generally very happy with the machine - particularly all the settings.  My only issue is the way sheets roll into a ball.  What I've done to partially combat this is to remove one sheet during the last 15 minutes of the cycle to let the other dry without rolling both sheets in a ball.  When the first sheet is dry I remove it and put the other sheet in to finish drying.