I took my 2 boys (6 and 3 years old). They are HUGE lego fans and were so excited to go to Lego discovery center. The "lego factory" was a joke.. you are so excited to get into the place and this room basically has several computer screens and buttons to push. Having toured the Crayola "factory" out in PA, I thought we would actually see legos being made but this really seemed to be just a distraction before the first ride. The main room was my biggest complaint. My boys went racing to enter the jungle gym thing and my 3 year old was turned away because he was too small which cause a huge melt down by my younger son. All he wants to do is race after his older brother. Secondly, if you dont have 2 adults, now you have to distract the second one while hoping the first one does not come out of the "cage" and wonder off. I was told that the duplo area was for the younger kids but this is a very simple slide which my son did go up and down 4-5 times but we were done well before my older son was out of the middle area. We did play with the soft large legos but again, we were finished with this area in 15 mins. We go to playgrounds at home 5 times a week with much more exciting slides that this one. The play ground down by the Cheesecake factory is more entertaining and that is free.
We were basically "done" with lego discovery center and I looked at my watch - we had only been there an hour. I have to say that my kids were "too young" or "too hyper" to do the master builder or the race cars. The second ride seemed too scary for my yonger son. If I had a daughter, I would have been insulted by the "friends" area. It was just a pink and purple lounge from what I could see.
For the price, I would not be rushing back any time soon. Of course the only exit is through the gift shop - like another reviewer I tried to use my Lego VIP card and was turned away. I was shocked how much my lego purchases added up to - I am not that much for checking prices but it did seem much more expensive that I typcially pay for lego stuff.
Over all my boys did have a fun time but for the money - We were out of the place in less than 2 hours and spent a huge amount of money.