Solus is a very lightweight and easy to use distro. It features the Budgie desktop which is probably the simplest desktop environment you will ever see.
Solus is independent so it won’t work with rpm or apt-get. The is the only real con with this distro. It’s too simple. Yes, it’s absolutely beautiful but the lack of packages and customization is where it lacks.
When looking through the App store its so scare it isn’t even funny. There are no IM clients or IRC clients and there are 3 web browsers. But surprisingly you get all the GNOME apps including Brasero and Abi-Word. The selection of preinstalled software is amazing, though. For instance, you get a bit-torrent client preinstalled!
As far as customization goes, you get 7 GTK themes and 8 Icon themes preinstalled. You get a few applets and a bit of panel customization. There was even a ported over version of Gnome Tweak Tool and dconf Editor. Besides the preinstalled themes and icons, you can’t install any more. The settings app looks quite similar to the Ubuntu settings panel.
Overall I believe this distro is on its way to being great but not quite there yet. More customization and more packages would be appreciated.