Some folks swear by the Performance Center.
I look at it this way. I like things done to guns by good folks that know what they are doing.
Now some folks just sell things and, well, maybe, all the work is not first class----I have had that experience.
I would think, from reports, that the PF can be trusted. I might even send a gun back to them.
I have some excellent results from independent boys also---and the folks at S&W would not work on my 19&54 K-22 because it was too old---even to the point of re-blueing it for me. I found an independent boy that did an excellent job on it.
Blessings