What are the advantages of an online kitchen design service over simply calling somebody in to do it for you? Cost is one benefit: it is a lot less expensive to do it yourself online than for somebody to come to your home and do what you could do just as easily yourself. Another benefit is that you get exactly what you want, and you can't blame anybody else if it is not to your liking.
If you choose to work with an established design company, you can gain control over your kitchen themes as well as the materials you want to be used. The only things that can limit you are the actual space of your kitchen and your creative imagination. There's no need to be completely original, because you can get ideas online as well as existing design galleries from bespoke kitchens. You can choose a design such as country, English shaker, or white modern kitchen design, and then customize the finishes, materials, and the way you want the kitchen to function.