I went to see one in Las Vegas and it was amazing. One of the best things I have ever seen. Howeverm I recently went to see a touring version and it wasn't as good.
The advantage of a fixed set is that they have huge hydraulic stages that really add to the performance. I would still advise going though. They are very good.
i am going to ask my son to take me,i only pay for one ticket and with him being the carer we only pay for one ticket,it means i can go and see more on stage,(it is because i am in the disabled space)
I watched one on TV quite a few years ago and was spellbound, I wish I knew what the name of that particular show was. They have several different ones but each one is crafted to perfection. I wish I could see one live.