Both of my kids, age 5 & 8, love these pjs. The stories and nursery rhymes are geared more towards the younger crowd, but my older one still loves reading along. And the animal facts are always a hit.
There are only 2 cons for my list. First, you have to download two apps to access the content - one for the stories and one for the animals. It would be better to have an all in one app where the info pops up and you choose if you want the story or animal facts, rather than keep having to switch back and forth between the apps.
Second, sometimes the QR codes don't work and take several tries to activate. It's hit or miss, so not sure if it's a problem with the QR reader function in the app. Fortunately since the patters repeat, we can usually find another of the same one to scan. It's a minor inconvenience for an otherwise really cool idea!