Complications
The system has been criticised for being somewhat complicated for foreigners who do not understand Swedish. Moreover, the hubs sometimes physically lock the bikes to the hubs, but do not register the fact in the computer system, resulting in blocked rental cards.
Furthermore, the rental hubs have been vandalised during night time resulting in bicycle thefts and destroyed bicycles and hubs. Management of the project has stated that if vandalism is not limited, the project might become too expensive and eventually canceled.
Read more about this topic: Stockholm City Bikes