I spent some time there about a 2 years ago. Luckily I started with the tribute album to Joni Mitchel which is much better IMHO. However, my take..... I thank him immensely for the effort to make jazz relate-able again to the masses. Here is an icon in jazz that is attempting to take the music back to his beginning in a modern and significant way. What I mean is this. At the pinnacle of jazz popularity we had folks leaving the Broadway theaters and traveling to 52nd (and others IK) and hearing those same tunes, and those they were listening to on the radio, deconstructed in new and exciting ways. In between the jazz artists got to play their originals but the glue that connected the audience was the popular song. We lose that when rock comes along. I know, I know, there have been a handful of rock tunes that have provided a platform for improvisation but by and large jazz went its way and the popular song went another. As the audience for jazz continues to get smaller and smaller I applaud Herbie for the remarkably insightful and talented effort to find a bridge. That is my take FWIW.