The original one I bought leaked all over my kitchen and created quite a mess.  I called their customer service and did a video service call.  The agent was very courteous and professional.  After the various troubleshooting, she determined the unit was defective and shipped a new one.  Unfortunately, the new one leaks as well but not as badly.  At least I can use this one.  However, I can only put enough water in the reservoir for the amount of coffee/tea I plan to make.  I cannot use the delayed brew option, nor can I have a full reservoir to make multiple single cups.
On the positive side, the coffee tastes great and is hot!