I have a 2054 and a 2170 - I love both of them. They were both "new to me". One I purchased from a dealer and the other one I purchased off of Craigslist. I am actually looking for an Expression 3 for a class machine since I love the other two and the best part of the two I own and the one I am looking for is the IDT. I have grown to love and depend on this feature.