Ranked in these QuestionsQuestion Ranking
Pro Great package management
The software center makes really easy to install the latest software. Including thid party software.
Pro Modern desktop environment
The default desktop environment used by Solus is called Budgie and is quite nice and minimalistic.
Pro Easy installation
The installation procedure for this distribution is quite simple. It's GUI based and all you have to do is to follow the instructions given by the installation window itself.
Pro Built from scratch
Pro Exclusively for desktop systems
Pro Rolling release
Con Limited repositories
As you can see Solus is new project that build from scratch.
Con The default desktop environment is not very customizable
Maybe because it's a relatively new project still in its infancy and this may be fixed in the future, but Budgie is not very customizable. You can only change the theme and wallpaper.