I was pleasantly surprised to find, on my move to Hemel Hempstead, that there is a branch of Robert Dyas here. It stocks a huge variety of products, and easily beats on-line shopping. The assistants are knowledgeable, and are always happy to help me find things I'm looking for. My latest buy was an Air Fryer, which was very competitively priced. I had bought the wrong water filters and and a helpful young man went off to find the correct ones for me. Service with a smile. It's a very inviting store, and it's easy to come out having purchased something you'd no idea you needed!