DCTUK offer good value for money, prompt service and a lot of helpful advice on their website about choosing and laying carpet tiles. I'm very pleased with the tiles and underlay that I bought. The only thing stopping me giving them 5 stars is the appalling inadequate carboard packaging in which the underlay tiles were shipped. It was barely holding together because it was so thin and was ripped in several places. Fortunately the contents weren't damaged, but that was more by luck than anything else. The tiles themselves were shipped separately in very robust packing. I would urge DCTUK to look into this as their shipper is doing them no favours here