The band will be hiring a professional recording engineer to mix and master the disc when the recording is finished. I was very impressed, though, with Justin's set-up and engineering abilities. He's far above average in both departments, as far as musicians with home recording studios go.
About my performance in the studio, Justin remarked after our session: "I knew it was going to be good, but I didn't know it would be THAT good. You exceeded my expectations, Ben."