I have had one since Dec and love it.
Received speedy replies the two times I had questions and e-mailed them.
They seem to keep on top of things and post repair videos and where to get parts from time to time. Also they have a service manual rev. 2 out that shows how to replace things like valves as they wear. It could be improved on by adding things like torque values for bolts.
They do have one repair video
https://www.youtube.com/watch?v=8t7sv2t3Css
that is very concerning to me. Looks to me like this fix permanently welds the motor shaft and pump together. Maybe I am missing something but seems like a bad fix because something (like the woodruff key in the shaft??) was not designed correctly, misaligned or machined out of spec.