If you travel a lot, you should buy this ticket, it's quite economical, you don't have to worry about top-up like ez link. Normally, it's 30 dollars per trip, about 1.5-2 dollars for MRT or bus, it's similar. Ezlink is used for the last 2 days to go back and forth. If you stay in the center, it costs about 2-2.5 dollars for a round trip, about 5 dollars is enough to run out of ezlink card money. Using the tourist pass for the remaining 2 days is quite convenient, traveling without any additional costs if you take MRT or bus.