Visited the hall about 15 years ago and was so imp...

Visited the hall about 15 years ago and was so impressed and felt like one day wasn't enough time to really take it all in. Bought a couple of quality souvenirs. So was excited at the prospect of seeing it again. Unfortunately it just wasn't the same, it has changed, but not for the better. A lot of the interactive displays were not working, the quality of the souvenirs was poor and it seems to have a lot less exhibited.