I went there for the first time recently to see the Pompeii exhibit. From what I saw of it, it really seems to be a remarkable place to plan to spend a day at. There are just so many things happening there that just to have spent a few hours seeing parts of it does not really do it justice. I would say a great place for children and adults.
It did take a long time to get into it. The line for those who had bought their admissions on line certainly moved faster. The signage as to how to get to different things could have been better. Make sure you ask how to get there if you are looking for a specific part such as a we were. It is much cheaper to park in the parking garage and have them mark your ticket as having been there. They only chaarge you by the hour instead of the whole amount.
It seemed a bit expensive to me, The general admission does not pay for quite a few things is what I noticed. However, it looked to be a splendid place if you planned to spend the day.