Stayed here in Aug 2021. The room was clean, large and comfortable with a great A/C system. The tub was large and perfect for soaking. The room included a charger with cables for USB-C, iphone and micro-usb.
This was helpful since I didn't have a Korea-US outlet converter and couldn't use my own chargers. There are plenty of shops and restaurants within walking distance, and this hotel is about an 8 min walk from the OSAN train station. The only problem for me as an American, was the very hard, traditional Korean, mattress. I guess when you grow up on these mattresses, you get used to it, but to me, it felt about as comfortable as sleeping on a carpeted floor. Overall, I loved my experience here, but ugh, that hard mattress!