We (3 adults) had only one day to experience Universal Studios. Our passes were collected at the park by presenting our pre-printed Viator voucher.The front of line passes were fantastic. The park was busy and our passes meant we simply went to Gate A at each ride or show and were 'on board' or seated in a very short time. We were able to ride our favourites on multiple occasions.
I can thoroughly recommend both Viator and the front of line pass.

Really enjoyable experience. Viator arrangements for the exchange of pre-printed voucher at the City Bike premises couldn't be easier. The guide we had was excellent and the ride is easy- there are only 3 hills but the bike gearing made light of these. Thoroughly recommended.