Pursat in the late 90s was a pleasant and forgettable provincial capital. The nearby Cardamon Mountains were just a bit difficult to get to, although I think that is no longer the case. The market and the river and an old wooden footbridge was the just about sum total of the town.
Better roads and access, more publicity about the area, more money for infrastructure has no doubt brought change, for the good hopefully.
I did like the town: small, friendly, welcoming. Just don’t expect to party like a rock star.