I went to his recital last night. This was my second time hearing him live, and I must say that I was more impressed with his playing this time. The first time I heard him, I was quite turned off by his interpretation of the "traditional" repertoire. The playing was not very musical, to say the least.
Last night, I felt very differently. The programme was mostly transcriptions. While I did not like everything that I heard, the playing was musical--meticulous phrasing, sensitive articulation, clear delineation of form, etc. Sure, some transcriptions did not work as well as others (such as the Chopin Etudes and the Schubert Erlkonig), but the colours that he got out of the organ were simply dazzling. I knew that organ very well, and yet I heard many sounds that I had never heard before.
No doubt he is a flamboyant performer. Nevertheless, based on what I heard and saw last night, he did not change registration frequently or take rapid passages in the pedals for the sake of showmanship alone. Also, he displayed an effort in reaching out to the audience: greeting the audience personally half hour before the recital, and giving intros to the pieces he played.