I am afraid that I am only able to give 3 stars, only because of their abysmal performance when it came to delivery. The product range is just what I needed, and the ordering and contact for arranging delivery worked very well indeed - lulling me into a false sense of security. Having discussed the aspects of my property, with a 2 metre rise in level between the road and the garden, it was confirmed I needed (and would get) a "Hiab" crane delivery. Delivery was scheduled for Tuesday, with a time to be confirmed on the morning, and the driver would call around an hour before delivery - which all sounded great. What actually happened is that I hung around all day on Tuesday, sending an email around midday to get a forecast; email reply was between 15:00 and 17:00. At 16:30 I called (no response) so emailed and got an apologetic response to say the driver had had problems, and it would be delivered on Wednesday. I hung around all day on Wednesday. I emailed again around midday as I hadn't had the promised call from the driver, and received a reply that it would be between 15:00 and 17:00 (sound familiar??) Sadly I had heard nothing from the driver by 16:30 (I was concerned after his "problem" the day before) so I emailed again (no-one seems to answer the telephone) but received no reply. By 17:30 it was clear I was to be disappointed again. On Thursday morning I sent another email asking if I might be lucky and get my delivery, and magically only 30 minutes later there was a ring on my doorbell - the driver had arrived (not preceded by a phone call an hour before!) However, I was to be disappointed, as the lorry was a "simple" contract delivery lorry that had no crane, and my options were to reject the delivery, or accept and take on the manual handling task of moving everything by myself! I was advised by the delivery driver that the contract delivery company had no "Hiab" crane equipped lorries, so if I rejected the delivery, there was no certainty that I would ever get my slabs. I reluctantly agreed to accept delivery, and spend a couple of hours and an amount of energy working out my frustration with Marshalls' delivery service. Good luck if you choose to order direct from Marshalls!