I sat in the front and he approached me. He was friendly, asked me what I did, made some suggestions on books and articles to explore. He also signed my book, which was cool.
I'd take the class again for sure.
I think it's important to just go in with an open mind and not treat everything he says as gospel. I think he presents some ideas that very much cut against the conventional wisdom in Silicon Valley and that was nice to hear.
So yeah, I think it'd be worth your time to go. Plus, just because someone else didn't like it doesn't mean you won't get a lot out of it. Unless you go and see for yourself, you can't really know.
Had the same experience, while it was cool to get all of his books, the actual presentation really wasn't that great.
There was also like 200-250 people in the room at least. Way too big for "intimate" learning.
I'm definitely a bigger fan of Tufte's books than his in-person lectures.
Edit: clarity