If its the one in the brown and white bag daz i have used it, made by TA - tile master adhesives, i believe it is used mostly by tilers though? Correct me if i am wrong, i done 2 bathrooms in it for a tiler who is a friend of mine, sets in 3 hours, nice flow to it, i was really impressed with it to be honest, good price to as you say daz
We used 10 bags of those only last week to level out a ceramic tiled floor - 40 sq m area in total (of which their builder said: "Nothing wrong with that floor"!) Good stuff.