I went last year on the Saturday and it got a bit bogged down, pretty quickly- at one point they were turning folks away, and Lofty Wiseman got his jag stuck and needed to be pushed out of the even ground. they had to get tractors in to move other stuff.
A lot of the advertised activities weren't up and running and I felt a lot like I had just been charged £20 to do some non standard shopping there. I got to do some face to face trades on the day (pre arranged on Facebook)
Despite this, I'll be going again this year on the Saturday, for me it more about being able to meet up with friends of mine who have scattered around the UK more than anything ... lol I'm also trying to shift a jacket and unworn pair of boots trading hopefully.