Great day out, saved a few pounds (mostly because exchange rate went up after I booked) and saved us a non sterling fee
Museum displays are great the tickets from Viator a complete waste of time. Even with a printed ticket you need to stand in this huge line and wait to exchange your Viator ticket for an actual ticket to the museum. Really bad experience and expect to wait another 30 mins to get this done. Employees at this museum have 0 personality, unhelpful and make a great place average. They need a VIP ticket friendly employees and a 2 hour must see suggested tour. Lost in what you should see.
Enjoyed it however would make sure that you allow plenty of time and suggest a guided tour in order you do not miss any parts of this huge museum.