Is the American Standard G50T 2-3-6 a good water heater? I have trying to find stuff about them on Google but I keep getting results for american water heaters not american Standard and the reviews are not good.

Generally, they are a your normal low end hot water heater. I have seen American Standard units last up to 20 years (like mine) with not problems, and I have seen them not last three years before the tank ruptured.

We have more calls on the Rheem and Brandford Whites than American Standards as far an minor problems.

Pros: Cheap; reasonably reliable; parts readily available.
Cons: Not energy efficient; tank quality - flexible.

When mine goes would I replace it with another American Standard? No, I would install the Bosch tankless water heater.