It is a GREAT preamp. Buy it and use it. I did a shoot out with some API and Neve pre amps recently and the Robbie won hands down. We have had ours for about 2 years and it works GREAT and sounds FANTASTIC. I bought ours as a demo from GC. I had to send it back to the factory for some refurbishments but it was done at no cost to us.
I highly recommend it.
Need some more info let me know.