First off, the guesthouse is a stone's throw from the Phimai ruins. The rooms themselves (Fan room, 350 baht a night discounted to 300 if staying longer) are fine and very clean. Could use a brush in the corners but otherwise everything was clean and orderly.
The owner speaks excellent English and with a smile. He's quick to respond to any request. The other ladies speak no English or little but they were kind and soft.
The tv for me was all thai channels so I unplugged it and used it for charging. There was only one other free plugin.
They also cook downstairs and the meals are of good value and taste. However, like most of the town, don't expect a meal past 7pm. Much of the town closes between 5-8pm. Even the night market winds down by 9.
I initially wanted to stay only one night but the area was relaxing and so easy to walk that I stayed a second rather than go back to Khorat.