Can't speak for this version of it, but for years I used the original patchmate without issue. I did run a buffer with it though to avoid the tone suck.
I can however tell you that the RJM gear is excellent! I've been using the RG-16 for some time now and it works flawlessly. It's quiet and the buffer is very transparent. I think Friedman designed it, and it has an adjustable level control. You won't get better customer service than Ron at RJM either.
My $.02