We had a great time staying at Gyeongju Wadamjung Hanok Pension! It really feels like you are staying in a traditional Korean house. The room was basic but had everything you needed: futons, outlets, towels, and some sandals for the bathroom. The building has an ondul, so the room stays nice and warm (and you do too when you are in the futon)! If you are used to sleeping in western-style beds, the futon can be a bit hard, but we found that stacking the futons solved that problem. There is a room where you can have a free breakfast in the morning, including fruit, OJ, toast, frosted flakes, milk, and a small skillet where you can cook some eggs.
The nicest part was the owner though! When it rained, the owner went around and pushed everyone's shoes under the edge of the building so that they did not get wet. When we were leaving, he also drove us for free to the KTX station in Singyeongju because of the pouring rain! He was incredibly friendly and was great about communicating with us through a translator despite our limited Korean.
We highly recommend!