Customer reviews and what they say

All hotels were in very central locations and of a really good standard.

As a group of 3 adults, a spacious accommodation was more important to us than we were aware of. The triple rooms in the OceanCruise hotel in Sokcho and the Gloucester on Jeju were a bit too small for us. The suits in the NineTree and Felix by STX and the Novotel were spot on. Gloucester hotel on Jeju was the "odd one out" compared to all other hotels as it has a very "tourist" character and the breakfast buffet was at a much lower standard than at all other hotels.

All
Accomodation was fabulous.
Beautiful rooms and we were updated on arrival to better rooms a few times.
Location of hotels great - very central and within walking distance of restaurants etc

Seoul 9 Brick: loved it; well-equipped room in an interesting part of the city, with excellent shops and restaurants nearby. Unfortunately, the roof terrace bar was closed when we were staying. *****

Sokcho Sea Cruise Hotel: business hotel, lacking character; AC switched off throughout the hotel but they brought us a fan when we asked; impressive breakfast buffet; most of Sokcho felt a bit run-down, so I don't think we were missing out on another, better, hotel; and Sokcho is an excellent base for the Seoraksan National Park, which was amazing. ***

Gyeongju Si Eun Jae Hanok Hotel: traditional and just right for the "museum without walls"; owner was friendly, very keen to chat, and helpful throughout our stay. *****

Busan Good Ol' Days Hotel: very spacious and comfortable; some retro gimmicks work well e.g. record player; some don't - the filter coffee just didn't do anything for us; but the coffee place downstairs is excellent and the breakfast basket was good; good location with multiple shops and restaurants nearby. *****

Jeju Island SNOB Boutique Stay: OK but fairly basic and felt off-season; spacious room; breakfast didn't look great so we ate out.
***

Seoul Ryse Autograph: lovely hotel, right next to 9 Brick; they were happy to let us store luggage with them while we travelled the country and on our last day; same great location as 9 Brick; superb breakfast. *****

Hoi An accommodation a bit noisy - perhaps an upgraded room would have been better ... otherwise hotel (with spa package) was excellent

I found all the hotels to be very good in terms of accommodation, facilities and location.

At my final hotel in Seoul (Hotel Gracery Seoul) where I stayed for 1 night, due to needing to check out before 07:30am to head to the airport, I was not able to have the paid for breakfast at the hotel. I had asked the hotel the night before that most hotels in this situation would happily provide a takeaway breakfast/ sandwich, but this hotel refused. Something to note.

We thought the Four Point Hotel in Seoul was the best hotel on the holiday. Definitely the best breakfast.
There were no menu choices when we stopped at the historic village in Andong. The food on both days was the same. We were there for the experience but it was a little disappointing. Apart from that the accommodation and people were lovely.
For some reason we were booked a twin room rather than a double for our stay in Busan.
Having clothes washing machines and dryers in many of the hotels was very useful. They weren't expensive. If we go back to S.Korea will take less clothes.