We had an excellent time at Inside Busan. It's a little architectural gem, just a year old, tucked away in a little lane behind Busan's colourful Chinatown--which is at least half Russian. It's very close to the subway, the train station and the airport bus, and we walked to the Jagalchi fish market and sights around. The private ensuite was small but cozy, and the shared facilities are very nicely designed and comfy. The host Jiyeon has traveled extensively, so knows what travellers need. She was a delight to chat with. Breakfast is DIY with eggs, fruit, tea, coffee and toast. I'd give it my highest recommendation.