Every neighborhood has crappy power. (I work for a very large utility).
Why? because most appliances don't care. It really doesn't matter to most all appliances how crappy the power is.
Most power is generated by rotating generators driven by steam from gas, nuclear, or coal. More and more power is generated by wind or solar. The traditional power is generated as a pure sine wave and the large rotating mass is synchronized to the grid, not only providing great quality generation but adding important stability to the grid.
Solar and wind are just the opposite and have to be converted to 60 cycles and fed into the grid. this makes it harder to generate perfect power and makes the grid less stable. But that isn't really the biggest problem. Loads come in all different forms from motors to resistors (toasters, hair dryers, etc) to large asynchronous industrial loads. These loads distort the shape of the electrical signal.
So it doesn't matter if you live in an old neighborhood or a new neighborhood, it is all the same.
And a transformer doesn't change it. If it did, we wouldn't want to send music through a transformer, would we.
there is no "if" you have crappy power, you do.
Jerry