It's very chippy compared to other synthetics/semi-synthetics (micarta, G10, stabilized wood, even carbon fiber). You must use a backing block when drilling it or the bit is very likely to blow out big chunks when coming through. You do not want any sharp corners on the finished handle.
If you can get past the "flea market effect" and use a little care working with it, it makes a very strong and durable handle. It's also dirt cheap... which can be good or bad. If you're selling lots of $70-150 knives made of old files and sawblades at gun shows and whatnot, Dymondwood can go over like hotcakes. If you're trying to move $200-300+ knives made of top-shelf steel... not so much.