Is anyone using it? I have one over a year old has problem that a lot of time it cuts off credit card after a few second or minutes. Sometimes the timer screen will go back to welcome screen. I call tech and they say send in for them to diagnose. I figure the cost will be ridiculous to repair so I ordered a new one. The new also has problem with the display screen (I use their small display screen comes with the DTI). Whenever swipe card or insert coins the screen turns from normal screen to blue screen right away (DTI still function). They send another new one and also has same problem. At first it would turn to blue screen immediately like the first one. The tech then doing something on their end and it works better, but again, it turns to blue screen after 2 or 3 wash repeatedly. So we thought maybe something is wrong with the wiring/connection. I test the working DTI from other bay to that "non-working" bay, and it works fine. And vice versa, the "new DTI" to the working bay, and it has same problem. The tech seems to be out of option and sort of blame on my end.