I have stitched 5 different patterns from them and used the 18 count linen. They turned out so nice.
I am doing this one next. In any case, they do give the DMC equivalent and that's what I have been using. I stitched some of the patterns several times. Only on the first two did I use the specialty floss .
You have to use four strands of DMC if you plan to use the 18 ct fabric. Aida Fiddlers cloth might be nice for it, it's more rustic looking.
Good luck. Post a pic to our website when you have completed it.