I went on a weekend last year and it was rammed. We decided to go on a week day this year and it was much better. It was still busy but not to the point where it got annoying so I'll be sticking to week days from now on.
I went last year and due to my work schedule, I wasn't able to go this year but my schedule has changed but alas the cheap hotels are booked up for the only days I could go. Its one hell of an expensive place so it's maybe for the best!