Answer: very well. There’s little that can fail on a HD except some top sagging – by virtue of being under tension of the strings/bridges. But even this affects neither tone nor playability. It’s the kind of thing that you strap to a horse/keep in a rustic cabin at a lumber camp (why one of its nicknames is “lumberjack piano”).
Given that the builder did an adequate job, it’ll last as long as the glue holds..