After opening the package, I realized that I didn't know exactly how they should be prepared. harald387 was kind enough to recommend warm and with butter, and they're described on the package as "English Style Toaster Muffins" so I had the toaster in mind, but I don't know whether they're supposed to be toasted crispy or just warm.
Crumpets turn out to be full of holes on one side and very flat on the other.
I tried them warm with lots of butter. They were OK. I'll eat the rest of the package but I don't know that I'll be buying more.