THSR pass is easy to redeem and use, and definitely cheaper if we were to buy the ticket separately in Taiwan. Once redeem providing have booked reserved seat at the time of redemption, no need to queue at the ticket counter. If have not reserved the seat, can catch any train leaving at different time (with interval of 15 or 20 minutes). A good pass to travel from day trip from Taipei to Kaohsiung/Tainan or Taipei to Taichung.