You won't be sorry!
This is, hands down, my favorite piece of gear.
I haven't yet found the bag I like for it, but there is a thread on here with a lot of suggestions, all of which I've tried and I'm still looking.
Set the output knob to zero and the M10 input to 6 on your first test drive, then adjust the knobs every 15 mins or so until you have the Sony at 4.
Take notes and listen back and you will find a wealth of depth at the various settings. One of them will be how you want all your tapes to sound!