This hotel was a perfect manifestation of Korat - run down, dirty, loud and cheap. I can't complain too much because the rooms were 500 baht ($15) and the hotel is centrally located but... it was a pretty depressing hotel experience. The lobby gives a hint of promise but the carpets in the elevator and hallway of the second floor, threadbare and dirty, were the first indication of what the rooms would be like. We got two interconnecting rooms which were of decent size. The walls were dirty and falling apart, mosquitoes were flying around the rooms and the bathrooms had just a loose shower head, no stall or curtain, so if you shower water goes over the entire floor. The special downer about the room is the bed which was almost as hard as the floor (I'm actually not joking). I've never seen anything like it. On top of all this, we were on the second floor which is right above the karaoke bar which boasts 3 rooms. Luckily for us, the karaoke bar was very popular during our stay and went to 3 am every night. What can you do? Its Korat. This all said, based on the reviews on Trip Advidor of other hotels in Korat, this might be one of the better options.

Tuktuk driver at train station suggested this hotel. They offered rooms at 600 and 1000 bath respectively. The difference was sllightly better equipped bathrooom for the more expensive price. We chose 600 bath rooms. Clean and comfortable. Staff friendly and helpful even if some spoke poor or no English. Location good and no problem finding restaurants nearby.

We found ourselves in Korat last night, on the way home to Udon Thani from the beach. Didn't want to push the drive back, so we opted to stay in Korat.
The Chaophraya is a pretty basic hotel in quite a good location - just a half block from the little central park that has the Queen Suranadi (sp?) monument. There is a decent shopping mall next door, a Thai restaurant with a huge menu, a small beer garden, and a Japanese restaurant that served decent food. Secure parking is a plus for this part of town.
The room was - well, basic. Worn, indoor-outdoor carpeting, an older air conditioning unit that was quite loud, two double beds with two of the hardest mattresses I have ever slept on. The bathroom was OK - there was hot water, and it was clean. At 500 baht per night, the place was more than adequate.
Staff was very friendly. I would stay again, and would recommend the property to friends who are familiar with barebones inner-city Thai hotels and not looking for much panache or amenities....