Easy! The redeem process is very easy and there is a self-ticketing/redeem voucher which can be scanned directly, so you don't need to queue at the ticket counter for on-the-spot tickets (different counters). N Seoul Tower is really a must visit in my opinion, here we can enjoy light hiking and then go down using the cable car😍beautiful! So when you get to the top, the view is really beautiful looking at the city of Seoul from the top of the Tower. The facilities are also clean and the souvenir prices are still reasonable in my opinion. Will come here again next trip to Seoul, you won't be bored! Oh yes, I got a special price now from Traveloka hihi, I'm so happy I'm saving money. I really love Traveloka, they often have discounts, because I will be traveling often 🤍 Thank you Traveloka 🤍