Great do it yourself tour - Great way to get to know the city and visit so many landmarks. You can tour the different areas at your own pace.

Must do activity whenever it is available. - I’ve consistently been impressed by the On and Off buses in every city I've visited. If you're planning a trip to Seoul, I highly recommend booking this tour through Viator. They make the ticket purchase process seamless, and you'll thoroughly enjoy the sights accompanied by informative commentary available in your preferred language.

nice experience no doubt. - this tour gave us the opportunity to visit Seoul's tourist spots. it's well worth what we paid for. my only regret: we could hardly hear the audio due to the very loud Korean broadcast that is simultaneous with the English version.

Alright for the price but not great - Like the other reviews have mentioned, this is better treated as a bus that takes you to places you want to go, rather than a “tour bus”. Also will need to navigate your own way to some spots from the bus stops as they often don’t drop you off right at the sights. For the price, no complaints, and if you’re short on time and just want to ride the loop to see the city, it’s not so bad either. Buses came punctually but 40 minutes is a lot of time between buses - wish they’d increase their frequency to every 15-20 minutes especially given the buses only run for about 7 hours a day. You’ll lose out if you try to “hop off” to see everything. Wish they offered a route that covered more ground (ie Gangnam, Itaewon) or added them to the existing route. Would be more convenient if the voucher sufficed to board at any stop instead of having to go to Gwanghwamun Station to redeem for a ticket.

Not at same level to other city hop on-hop off - Experience was okay, but not more. Korean sound track plays over loudspeakers, making it difficult to follow along in another language using the headsets. In addition, the timing of site descriptions along path were often given well past the site.

Very Disappointing - Stop is hard to find as we were not told which station exit. Bus we had was not easy to see out of by design plus windows were filthy. We were trying to listen to the recording but lady/ or speakers was blaring the Korean version while we were trying to hear English.

Wasted the whole day waiting.... - It's the worst hop on hop off that I've experienced. The interval of the bus is too long that if you stop at a tourist spot and you feel like that u don't like it you don't have a way to go to the next site coz you have to wait for 40 mins for the next bus. If you ask me just use the public bus instead. Its cheaper to get to the sites you want to go and the next bus is available every 5 to 10 minutes.

Don’t Do It! - What a waste of money! We ran to make the first bus only to find out that the stop had changed due to the Seoul marathon. Not a big deal but we were not informed (was it that hard to send an email out to registrants?) We ended up missing the bus and having to wait 40 minutes. Also, they informed us that two of the stops were not available that day. The English translation was awful with barely any information and every bus was way over booked. I take a hop on/hop off style tour whenever I am in a city for a short time. This was the worst one I have ever taken.

Just a bus with a second floor - Terrible, only in Korean and the double decker bus had a roof; for that do yourself a favor and buy a regular bus ticket and stay on it for an hour and a half same basic experience only youre paying far less and can get off anytime. I took a cab to my destination that was more entertaining

Not worth the time or money - Very poor , there is not explanation on the route you can’t hear the announcer,plus there is no real sites to see , not worth the time or the money , probably the worst hop on hop off bus we have ever done in the world ,