Fitted kitchens, although often not cheap, are most definitely worth the investment. The beauty of a fitted kitchen is that it is made to the exact dimensions of your room and therefor everything fits as it should. Having everything in the right place and hidden behind cupboard doors (if you wish) can give the appearance of space and make the room flow well. This is something that you often only find in bespoke kitchens.
Once you have decided to have a fitted kitchen, you next need to find a company that can design, build, and install it for you. It is important to find a company that you can trust and also one that has good reviews. Be sure to take the time to read through any case studies and reviews, ideally on third party websites, to get an idea of what they are like and what sort of service you can expect.
They will often come out to your home to take some initial measurements and talk you through the type of ranges they have. From here they can then create a design for you to sign off before it goes in to the production stage.