Way back in post #6 in this thread, I posted about
Ban Chiang, which is close to BTS Surasak. Someone I was with on a recent trip wanted to go there as a sentimental favorite from years back. I was skeptical at best, but went along since it was close to where we were staying so no issues with Bangkok transport. Also, we were with a "first time in Asia" couple, so how bad could it be?
Anyway, though my tastes in Thai food have matured, if not evolved for the better, Ban Chiang was surprisingly good. Not all that Westernized and in the same pleasant, "Old Thai house" setting.
Bottom line is that I wouldn't make a special trip, but would consider it if in the neighborhood. Also, good for people who may not want Thai food that's too authentic, like Soei.