It is a fine unit that sounds as good and better than other processors at its price point. When used with a REGA planet it inproved the sound greatly, i.e., more extended frequency extremes and tighter, better and depper bass. If you are familar with Meridian sound it is similar to the 508.24. However, it is more accurate, (IMO) than the 563 processor.
I bought one used and still own it. Shortly after I purchased it, (6 months) it had difficulties locking on to a signal. I sent it back to MSB and within a week or so it was up and running in my system again. And, get this, they didn't charge me a dime and paid for shipping. How is that for customer service!!!!!!! You won't find many companies that pay for the repairs of an out of warrenty used piece equipment. MSB gets 5 stars in my book.
BTW, since the repair I have had absolutely no problems with it.
I would suggest that if you play 44.1 CD you set the internal jumper to 132 instead of the 96. IT is even math for upsampling and sounds better.
The going price for these units with the power base seems to be around $800-900. If you can get it cheaper than that go for it.