Aside from the fact that JetBrains make incredible IDEs, basing it around CMake is a great idea as it means project files that aren't tied to a specific platform or IDE. You can develop a project in CLion just as easily as you could with vim and the build instructions would be the same.
I very much hope this is the future and the tooling around CMake is improved too. In my perfect world, this would include dependency management - even if that just meant a reference to versioned sources that you could easily include in a project file and the tooling was responsible for pulling them down and building them.