No I do not have one. I build/retrofit my own cnc routers/mill/lathe/printer/soon plasma from scratch (several machines now). I am just questioning PMs 5 year warranty and what that really means for supporting the user. Editing ini and cfg files is typical of using a system like is supported on their pendant. I have a similar one I implemented on my 3d Printer I built. Decoupled is nice. In my case though I know the other half of the pendant and code though too. PM is trying a KISS approach to their machine. When it works it prob works great. Its when it does not or you want to add enhancements that you will get frustrated. I too would like to play with one but have zero interest in owning one.
Glad its my shop I am responsible for - I only have to make me happy.