I've read that personally he is a real *****, but when Star Trek came out, I was a big Sci-Fi fan. Our stations didn't carry it the first year, and I was devastated. I went on a business trip to New Mexico, and almost missed my plane because it was showing on the motel TV.
I will give him credit for being an icon, and providing us a lot of good entertainment. I wish him the best (I still remember his performance on Twilight Zone where he was a passenger on a plane watching a gremlin trying to destroy the plane).