as i see it. you got 100 mts to do. For sake of demo say its worth 300 quid with liquid you set up wait for gear then pour. Maybe 2 men. You could be waiting all day for screed or it could come early. its luck of draw down this way. either way it takes 3 hrs very maximum labour the rest is spent waiting.
For trad its worth 300 quid again. you arrive someone loads all the areas and you are on your knees all day earning .
With gravel. you turn up barrow in 9 ton of pea gravel then set up your machine and pour the screed. Theres a load more manual labour are you any better off unless its the short drying times you need. I aint saying its a waste of time i would like to know more about where it could be used. Obviously compared to traditional methods its less labour intensive and leaves a better finish.
Would it work over UFH