Do I need a power transformer?

I will be getting a Keces balanced power transformer as a trade in from an audio upgrade transaction. I will be getting the new Keces 3600. It is their top of the line balanced power transformer. I’ve been told that unless I have obvious noise in my system that I probably don’t need it and that I would probably have better sound without it. As I am getting it regardless I suppose I can try it with the Keces and without but what is the common rule of thumb regarding power transformers. I am currently using a Hydra 6 for everything except my amp where I am using a Hydra2. I don’t perceive  noise. Will I get benefits with the new Keces balanced power transformer?