This is really straight-forward DIY project which gave an absolutely great result. I covered over a really poor concrete patio made up of a number of different efforts by previous owners, Delighted. I laid it at about 5 square metres per hour on my own. Clearly the detail is in the preparation, getting a 15mm edge all round. If I did it again I would get my wife to act as a "spotter"; a second pair of eyes to ensure it is smooth with her looking at it from the another angle and calling out "you missed a bit!". Expect to throw away the clothes you wear for the job, unless you are very tidy worker:)