Personally I thought it was crap today.
2 hours to get there, 1 hour to look round.
Nothing really impressed me or taught me anything I didn't know. Not been clever, just honest.
One thing that did catch my eye was a guy who had converted a Road Sweepers trolley into a WFP System. Bit tatty but with a few changes and modifications, it could be a good portable system for Town Centre's. I'd definately use one.