I stayed at this hotel when visiting Cheonan on business for 2 nights. It is approximately 5-10 minutes walk from the bus station. The rooms are fine for the price paid. They are perhaps a little dated, but this is not Seoul. They do get a bit warm so the air conditioning needs to be on even whilst sleeping. There are restaurants closer to the bus station but I also went to one close to the hotel that was recommended by the hotel. The staff were very helpful and friendly and spoke very good English.
Breakfast is typical for Korean hotels (not international hotels in Korea) - rice/noodles, egg, bacon, toast etc.