In a time of my business trip to South Korea, I needed to move around the major cities such as Seoul, Busan, Mokpo, and Gwangju. I'd like to tell you that it's pretty hard to work to such a tight schedule and be everywhere on time, especially when you have never have something in common with the Korean language,
With the help of this service, I'd planned all of the trips before being in Canada. It takes only a few clicks to book your ticket and then just to print it out. Also, I was surprised by the comfortability of Ktx trains. Highly recommend!