Really like Joe. Not surprised that Clapton recommended him, Joe plays with the same fire, edge, enthusiasm that EC used to in his Bluesbreaker/Cream days but (sadly IMO) lost at the beginning of the 70's. I saw an interview with Joe where he said he often tries for the early Clapton/Green sound which I think he gets (and improves on) more with his 4 amp setup than the Marshall he used on this show - however still an excellent sound for such a simple setup.
I suppose you've got to give Clapton the credit for starting the ball rolling - shame he dropped it and left guitarists like Joe, Gary Moore etc, etc to pick it up and run with it.