Although close to being a Hendrix completist, I had never watched or listened to the Isle of Wight concert. Through the years, I had heard that it was his worst one and I had believed those reports. However, it wasn't until now that I realized just how bad the concert really was.
Fortunately, there is an excellent BBC review from 2002 which does a great job of summarizing the concert. There may not be a great deal I can add except for a summary of my own impressions. But it would be hard to even begin with all the things that were wrong with this concert. Being such a Hendrix fan, I actually found myself somewhat stunned from time to time while listening. But he was tired, jet-lagged, unenthusiastic about being there, jaded over his old material and still only able to come up with very few good new songs. When Hendrix shoved his guitar to the floor at the end of the concert, at this point that was not surprising. As someone who has spent a lot of money through the years on Hendrix CDs and DVDs, mostly CDs, this concert is the one thing I would not recommend to anyone.
https://www.bbc.co.uk/music/reviews/whbd/