I've seen him a dozen or so times (in trio (Avery Sharpe with Louis Hayes or Aaron Scott), quartet (Gary Bartz, John Lee and Wilby Fletcher), and quintet (the previous group, plus John Blake), but unfortunately not in the last twelve years or so.
Each time was absolutely great. I wouldn't miss him, if I had the chance. He's one of the greatest musicians I've seen live, in my 30 years of concertgoing experiences.