This was a wonderful but very emotional visit. We did a walking tour and we purchased our tickets directly through the museum, not a third party. I HIGHLY recommend doing this organized tour through the museum.
We started outside and our guide gave us headsets. His microphone talked directly into our headsets. We had a 10am start time and the place was already busy, so I was thankful I could easily hear the guide. It also enabled me to take the headset off when it was a little too much to remember from that day. We walked around and he shared about the outdoor memorial, the survivor tree, and much more.
We then skipped the big line and went into the actual museum through a tour entrance with our own security line. This was really nice and much faster than the line we passed! After everyone had time to get through security and take a bathroom break, the tour continued in the museum. We had a fantastic guide and I learned so much that I would not have learned without the guide! The tour took about 2 hours and then we had time to walk through exhibits at the museum as we wished.
I cried a lot. I read a book once where it said " it takes courage to take a place where something awful happened and make it peaceful" That is how I felt. Something horrendous happened here and it was hard to relieve it, but I think it is tasteful and very well done to teach what happened and remember those that were lost.
And just my personal opinion.... I do not recommend taking young children. I also don't recommend taking smiling touristy selfies. In my opinion, it is just poor taste to taking big smiling tourist selfies in place that is designed to honor and remember a solemn event- it just seemed disrespectful.