@Guy ******
He's right about avoiding that border crossing for re-entering Thailand..I simply corrected him about his using the incorrect name for the border, that's all. Everything else he said was correct.
I just don't understand why farangs refer to a Cambodian town as the Thai border, when the immigration offices on both sides of that border work very differently. The Cambodian side, although surly, won't reject you, unless you have a history of overstays, are a political activist or from an "undesirable" nationality such as somewhere in Africa. Westerners will have zero problems entering or exiting Cambodia there BUT the problem lies on re-entering Thailand at Aran, on the Thai side.
Thus choose any other crossing, even nearby Ban Khao Din, which is very easy going.