I have AG motion 2 mill, lightly used in our private practice,...breaks down constantly, excruciatingly expensive to fix. So far I've had three encoder circuits go out,..at a couple grand apiece,..and an internal fluid pipe burst, spraying coolant all over the circuit boards, which put the machine out of commission for months. The machine doesn't even have enough hours on it to warrant the first preventative maintenance from AG. It just clunked to a halt again this week with that 2 Grand error message (encoder), and I'm not going to waste money fixing this awful garbage.