You get what you pay for right? There are numerous ads out there, and there is a possibility they may take your money and not deliver on their promise.
They may make your site using generic templates, as they may not have a variety of templates, and then request you to submit five pages of text content and paste it into the template.
This template-based website will have immense limitations, since, it will lack interactivity, graphic design and without any search engine optimization, Try and stay way from this cheap website design Kenya.