I've never eaten an acorn, only stepped on them, but that is kind of what the meat of a chestnut is like. Roasting does firm up the meat a bit, but it still isn't crunchy, not in my experience. I get it to make use of what you have as a necessity, or it's readily available so don't waste a resource, but wouldn't go out of my way. Probably roasting then mashing into a paste and mixing with apples to make an apple butter, something of that nature might be good. I reckon you could probably substitute in anything calling for chickpeas, such as hummus, if you're into that sort of thing.
Hm, chestnut hummus. I get partial credit if anyone decides to make it and it's a hit. Might be damn good, though chickpeas would be much more economical.