Good value if you get the Groupon offer

Visited for a children's party. Worth it if you can get the Groupon offer for £65 (although the £168 saving quoted seems a bit misleading, as party package online quoted as £10 per person plus £15 for room per half hour)! If you pay full price, you will party alongside others paying half as much and they get a slighly better deal.
I think it would be a better deal for customers if they cut the cost, or offered a more attractive deal for their party groups overall, rather than a discount for just a few. They may then get more repeat business and word of mouth recommendations, rather than paying Groupon to advertise.
The party room is available for food, but you don't get any time to set up the food before the children are ready to eat, so can be a bit of a rush. Five minutes to set up before they are ready would be a good idea.
Children enjoyed it. Probably best suited for quieter groups, rather than those who like to run around. Lots of groups of children around, I did wonder what the 'serious' climbers think about this.