I bought this unit in April and just got a chance to open it to see how it worked. I was a little disappointed when it would not start. Customer service was helpful and sent a technical bulletin to show me how to get it running. They have a plug that comes undone during shipping. After watching youtube videos I found this is a common problem. I would recommend they put a lockable plug instead of one that will come off during shipping. I was able to fix it but when it is brand new I should not have to take it apart to get it running. other than that so far it seems to work well with the problem fixed.