I had a DJH for several years and loved it. It has a beautiful midrange with a classic Cary sound -- rich, lush, warm, yet balanced. It's transformer-coupled giving it great slam and a tight bottom end. It's rare to find a preamp in this price range that doesn't use capacitors for coupling. It was extremely fun to listen to.
I paired it with several different SS amps and never had any complaints or problems. I was using RCA 6SN7-GTB which had a fatter bottom end that I liked. It warmed things up and offered a beautiful soundstage. It should work well with your Bryston.
Are you aware that Upscale Audio sells it new for $1299. 1250 for a used unit seems high. They usually sell for $800-900 on the used market.