I'm still setting it up. It was down-tuned for a very long time and a string was missing.
I didn't see it before it was renecked, but the first neck was mahogany.
Few of us had the good fortune of meeting Aaron Cowles, a master craftsman of the highest order yet very pragmatic. That was the description also of the original Heritage owners.
The H-575 is a jazz workhorse. I took video lessons from Mimi Fox and Alex Skolnick years ago, two extraordinary players both using the H-575. It does the job well and is sturdy. Unlike thin topped spruce jazz boxes, this is built for amplification and to take it. (As an aside, here's a fabulous rock solo by Alex that brought tears to the audience.) https://www.youtube.com/watch?v=X07ssteuM8o&t=245s
Here's what I don't like: the tailpiece. It functions, but you have to learn how to keep the string ball in it. Previously I had the ball slots deepened in another guitar. If someone knows an easy swap out for the tailpiece that is more solid and secure, please let me know. Bigsbys need not apply.