I use the older version, the VJ1617H. Since the change from the MP-11 to the MP-31 inks, I love it. I have a unit at my one job and a second at home where I do a ton of coroplast and partial wraps. Changing from hard to rigid substrates is easy and the ink is nearly the cost of the MP21 inks that the VJ1638X uses. Basically the 1627MH is a streamlined version of the 1617H and uses a newer printhead and is quicker.