I was only 3 in 1975, so I've no memory. My earliest memories are around 1977.
From what I understand, I had a relative say to a irate householder, "Just wait until 1975." Of course, it seems a common phenomenon for people to downplay what they expected and how much they expected it. This seems to have happened with Harold Camping's group.
I DID buy into the who line that Watchtower never claimed anything about 1975, just some people read too much into it. It was only when I started waking up around 2011 and reading what the Watchtower said (and how they said it) that I realized it was deceptive revisionism.