Value depends on the normal price of the attractions you choose to visit. Unfortunately we visited the city during a predicted blizzard which caused many attractions to be closed so were unable to use all the stops we purchased, not Viator's fault! Do your research ahead of time for max value.
I would do this again. Wonderful never had one problem.
certainly saved you money but also forced to make sure you did a certain amount of tours to ensure that. bit of a hassles and time consuming to line up to redeem the ticket initially, then everywhere we went we still had to queue of some sort, probably just not quite as long if we didn't have passes