The reservation is very simple. If it is only in the Tokyo circle, and will take some long-term private rail, it is still a more cost-effective pass. If you don't carefully plan the itinerary and calculate the fare, it may not save money. Because you have to show it to the station attendant, some station exit train attendants are not there. It will be more troublesome. Some station attendants are not familiar with the pass and will delay a little time.