Lara and I visited the exhibition today and we enjoyed it.
It actually brought home to me that, in my experience, there are two types of exhibition; firstly the inspirational and secondly, and no less important, the interesting. This was the latter. Without wishing to appear glib or dismissive, anyone with a reasonable grasp of how to use a camera could have taken those photos.
Aside from a few of his later works, the rest were, in my opinion, good quality snapshots. They made me interested in him and the culture of his age but there was no "wow factor" compared with many other exhibitions we've attended. What struck me as very odd is that he picked up a camera in 1961, took about 18,000 photos and then, in 1967 he put the camera down and never picked it up again.
All his photos were shot on Tri-X and, therefore, B&W. There were a few which included some stars and various talented people of the day - and also Andy Warhol and David Hockney.
It's very well worth seeing. There's a lot of it and you can watch Easy Rider or The Last Movie (both rated 18).