We had an extended stay (10 days) while visiting family in Incheon.
The hotel turned out to be an excellent choice for us (was within walking distance to my in-laws home).
We stayed in a 'Standard-Twin' room. Hardwood floors and 'Asia-style' bathroom (ceramic tiled floor with shower, tub, sink, and toilet in a 12x12 ft room).
Room was clean, had fridge, TV, and electric range (which we didn't use).
The only weird thing about the room: the bathroom didn't really have a door. The bathroom was partitioned by glass walls, enclosing the shower, and a separated toilet area (the glass being 'frosted' in strategic areas).
My only 'complaint' would be: when you took a shower, the water would 'leak' from the shower partition out to the rest of the bathroom, and in our case, into the toilet partition. So if you weren't careful, the next time you sat on the toilet, your feet might be in a puddle of water. But as I said, it was 'Asian-style', so you were provided with shower-shoes as part of the bathroom amenities.
I believe when we checked-in, we were given a coupon for one free breakfast (which we didn't use, always had breakfast at the in-laws house).
Would definitely stay there again (which we did actually. Our trip was structured as 10 days in Incheon, 4 days in Seoul, then back to Incheon to catch a flight out. So our last night in Korea was spent in this hotel).
Bottom line - although we didn't stay in one of the fancier rooms, our room was clean and affordable.