Product - I have only had it for a 36 hours but I am very pleased with it and find it is simple to use and consistently accurate as stated. I think the price paid is good value for a STABILA product Delivery - I ordered before lunch time and paid for next day delivery. Unfortunately due to an error at Trade Tool Shop my order wasn't processed until the following day. I spoke with a very polite Lady on the expected delivery day who confirmed what had gone wrong. She assured me that I will receive a refund of the "next day delivery" charge. If that happens I will be extremely pleased as I do understand that sometimes things go wrong. Aidan