For the ship maps and such, it's great, but other things it fails on. For some reason, I could only see my transactions, but my wife could see all of ours in the group. This was very frustrating since everything was linked to my credit card, and I was getting alerts that I couldn't confirm. Aside from that, there needs to be an option for child care on the app. We all had to wait in line to register our kids because the staff only had one Ipad to use. This could be easy done on any cellphone!