I've used it on quite a few jobs mate and like it.
I was told by the laybond rep not to prime it though if your screeding it same day.
So I do 1st coat 20 min wait
2nd coat wait a hour
Found it works mate as not had a call back. I've done about 5 jobs with it.
I hate the Screedmaster trade though as had 10 bags of that. Never using it again.