This is a little boutique hotel with small rooms (typical in Seoul). Location-wise, it's a 5-10 min walk, slightly uphill from Exit 1 of Hoehyeon station. That's on Line 4 and if you are coming from Incheon or Gimpo airports, take the AREX (4,250won) to Seoul Station and transfer on Line 4. The neighbourhood has a lot of smaller establishments for food and drinks - no pubs, etc. It's a quiet area but you don't feel unsafe.
You get a traditional key for your room. I think all the rooms have windows and ac/heater so it's good. Toilet's small but strong water pressure.
There's a simple breakfast - bread, jams, coffee/tea. I saw some eating cup noodles.