What a superb product! I have a sloping driveway and with doing the driveway myself, I needed something quick to fit and able to cope with the gradient. My order arrived as promised after 48hrs. Nidagravel's customer support was excellent in helping me amend my order. I ordered the Nidagravel 130, laid the 30sqm in about 2hours (including all cutting). I had a skip arrive after laying the Nidagravel grids, and the grids coped well with the weight. Lastly the filling...I used a rake as advised. I also used a whacker plate on about half power, to compact the gravel in the grids. I cannot speak more highly of this product. The delivery is expensive, but overall, a great product and a great looking driveway.