Easy to order & understand. Delivered on the day chosen, helpful delivery person. The sedum was very dry when delivered, so needed carful handling or would fall apart quit easly. That said it would soon add a lot of weight if delivered wet. The matting was difficult to cut, I used up two pairs of old scissors as you have to cut through the backing along with the chipping and gravel of the growing medium. I allowed 50mm for the depth of sedum & backing which was perfect for the job. It looked good when laid & really happy after jus a few days. You DO need the extra 5% when ordering, or expect to wish you had later.