You have decided to build a website with CMS Made Simple. Good choice! CMS Made Simple has several advantages:
It's simple. You won't need more than half an hour to introduce your customer to the usage of the CMS. It is mostly intuitive.
It's flexible in design. Any design that is created in HTML and CSS can be ported to CMS Made Simple. There are no restrictions.
It's modular. The basic functionality of CMS Made Simple can be extended by installing over 100 additional modules that are offered for free on the official website.
It's popular. You are not alone. A large international community helps you to solve your individual issues. Thousands of websites are already built using CMS Made Simple, so you are not going to be alone.
It's open source. You can create your own functionality the way you need.
You can avoid provider lock-in to a certain proprietary closed source CMS solution. If a provider of proprietary software decides to charge you more, goes out of business, or does not want to incorporate desired new functionalities, then there's nothing you can do. With an Open Source CMS, if you face a problem that you can't solve on your own, you can at least hire a programmer who will solve it for you.