Hoping it does well for him. Targeted immunotherapy is the way to go if available and will eventually replace standard chemo for a lot of diseases. It is one of the most exciting areas of research right now
As always, with most complex situations, the devil is in the details. In this case, your life is in the details.
Anyone with blood cancer and/or lymphoma should seek, at a minimum, a second opinion from a top research center. There are probably only about five of these who have world-class research facilities, diagnostic capabilities, and specialized physicians to diagnose the particulars of these cancers with all their various mutant variations. Only with a proper diagnosis can a proper treatment be formulated. There is no one size fits all or "cookbook treatment," which is what you will normally get from a local or regional ONC.
Going to a local or regional ONC doctor is like taking your Mercedes 500 to a local shade tree mechanic -- accept it's your life at stake.
My choice for a top cancer center was the #1 rated cancer center in the country: MD Anderson. It saved my life.