They are the only pipe manufacturer that makes (or did make) a perfectly shaped straight billiard, in my modest opinion. Not all their billiards, but many. I speak as a freak for the shape, of course. "But I have an X billiard that is perfect!" one might hear. Yes, but I'll bet it's nearly a one-off for that company. I can pick a Dunhill from a vast array of billiards, just by the silhouette. I think it, so it must be true, being pretty much perfect in judgment of all things.
Nevertheless, I have a mere three, chosen for the above reason. One only meets my high standards, an LBS with tapered bit. The smoking qualities I would describe as good, not great. Fit and finish are great. I will never buy a White Spot, the company that dare not say its name.