Oh man... Concreters. We did it ourselves. Practiced the screeding with sand, mates on shovels, 24 months on and no cracking. Better yet, no waiting around for them to show up and then when they did they down-tooled after 10 minutes to run off to rescue a job going off cause of lack of bodies. Sacked em, saved the money, didn't look back. It's not rocket science, but the muddy-guys would have you believe that it's witch-craft and they only work when the stars align. I feel for you mate!
