I've stayed in 24Guesthouse but in Insadong, so I thought this would be as nice as there, but it's disappointing.
Location: Very nice and close to Sinchon bazaar. It's close to Yonsei University, so you can find everything you want in this area all day.
Cleanliness: Not so clean. I don't think they vacuumed my room because I found tons of hair on the floor, but bed is clean. I don't expect much from guesthouse either.
Staff: I tried everyday to talk to staff about my bathroom (it's clogged), but I couldn't find one. Yes, I solved the problem myself. During my four-night stay, I haven't found the staff since the day one. They let you checking in and out by taking and dropping the key in a box on their table.
Utilities: There're computers, washing machine, kitchen, and freeze that you can use. There's no Drying machine, but a rack on the rooftop deck.
There's NO BREAKFAST unlike what they wrote on the information page.
They claimed that guests complained a lot about their simple breakfast, so they decided to stop offering breakfast.
You have to buy your own breakfast, but 247Guesthouse Insadong still serves their breakfast (bread, coffee, milk and juice.) I don't think guests would complain about free food, so you better continue serving them breakfast.
I wouldn't stay their again.