Have had this a few weeks now, and it generally works extremely well.  Have tried both the K-Cups and full pots ... both work well.  Tried the overnight auto-on for a full pot .... worked perfectly.  My only complaint comes from using a so-called "green" K-Cup that had a fabric side/bottom vs plastic.  It actually brewed the coffee OK, but during the process some coffee sprayed outside of the machine and onto the countertop.  Not a lot ... just a few drops.  Since the "normal" K-Cups work perfectly, I'm considering this "no big deal."