The older Heritage guitars can be stunningly great instruments. You just got to play them and see, and do a thorough checkout, like any used instrument. Heritage were a lot like Gibson Kalamazoo. Sometimes they were insanely great - and every now and then, just insane.
I was quoted earlier in the thread. I have owned two Heritage guitars, both bought used. A 1998 H150, that I bought just over 20 years ago. The second is a 2001 H535 that I bought about a year ago.
The necks on both are very similar, and nearly identical to my Gibson Custom Shop 60th anniversary 1960-v2 Les Paul 'burst. The "v2 neck" was a real thing, transitional between the fairly chunky '59 neck, and the razor-thin neck of the 1960-v3 and later vintage Gibsons. It is a very comfortable neck.
The H535 is natural blonde and I happened to see it hanging at a shop. It was *pristine* with all the original Schaller hardware and the HRW pickup option. I played it and it instantly had "the sound" of a great ES335/H535, acoustically and through the pickups.
The story diverges a bit here. My 1998 H150 has been an incredibly great playing guitar. The 2001 H535, had a not very well done fretboard/fretwork. It was all original, with the nibs in place. The fretboard itself was simply not properly leveled, which would be a factory issue. That kinda explains it being so pristine after 20+ years, it just wasn't playing that great. Some heroic work went into leveling the frets, it was OK-ish when I got it. But eventually, I yanked all the frets off, properly leveled the rosewood, and refretted with slightly larger Dunlop 6100 wire. I also put on a CNC machined nylon nut, just like Gibson used back in the 50's and 60's. (it's better than bone, trust me!)
It now plays absolutely incredibly well. I put Faber locking bridge and tail, and the Faber bushings in it. The bushings made a surprising tone improvement. It was good before, it just had even more of that great semi-hollow sound. I capped it off with the lightweight Gotoh tuners that are perfect fit for the Grover Rotomatics. The Rotos were in great cosmetic shape, still quite shiny, but the lubricant inside had gotten stiff. The Gotohs are both light, smooth and just wonderful.
I've played it A/B with a Collings I35LC with ThroBak pickups (a very, very nice $8000 semi-hollow). The I35LC is *amazing*. But the now properly fretted H535 gives up nothing to it. No regrets. My H535 is a lifetime keeper.