I don’t hate it (more like indifferent), but I didn’t really like Monty Python and the Holy Grail all that much. I found it just OK. I honestly think the opening credits are literally the best part of the movie. I did have some scattered laughs throughout the movie after that, but no belly laughs (apart from the opening credits).
Hate to say it, but I’m also one of the few who agree with you. Although I think the movie peaked with the infamous black knight scene. After that, it all went downhill for me, and the jokes became more… Ehh.