Published on Jan, 2020
My husband and I bought a 4-day group ticket (meant for up to 5 people). This was ultimately the least expensive option for our trip. There was some confusion at a few attractions, both good and bad, as items that were supposed to have a discount were free, and one attraction did not accept our card. If you get a group ticket, just inform sales staff they will need to scan the ticket for each person.
Overall, this was an excellent purchase. We did not have to validate our ticket as other reviewers have mentioned, as we purchased ours online before our trip.
Be aware, if you purchase a group ticket, the individual whose name is on the ticket must be present for all travel.
While no one asked to see our tickets for transportation at any point during our trip, I highly recommend not trying to sneak on transportation as there is a fine of €60 per person. At $36 per person (2 people) for the group ticket, it's better to buy the card than risk it.