When comparing Solus vs Funtoo (portage based), the Slant community recommends Solus for most people. In the question“What are the best Linux distributions for desktops?” Solus is ranked 10th while Funtoo (portage based) is ranked 32nd.
Ranked in these QuestionsQuestion Ranking
Pro Rolling release
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 Great package management
The software center makes it really easy to install the latest software through Snappy and Flatpak. Including third party software.
Pro Exclusively for desktop systems
System boots quickly and stays responsive. Does what operating system should do, and does it really well.
The system itself is very stable. All packages in the repository seem to be carefully picked, well prepared and run stable.
Pro Seamless Packages
It may not have the most obscure packages, but the packages it does have is a good number of everything a Linux user needs. Gamers, developers, desktop users, etc. all have the necessary packages and then some. The packages themselves are integrated perfectly and are very well updated.
Pro Built from scratch
Pro Like Gentoo but more streamlined
The profile system improves portage's usability without losing the soul of Gentoo.
Pro Stage3 archive coming with pre-compiled kernel based on Debian's kernel
Pro Use flags that are suitable for a task or environment are grouped into Profiles
It allows selecting, for example, gnome or desktop profile with most of the sane use flags enabled inside the profile.
Pro Portage tree split into kits
This allows more fine-grained control over package updates, and packages can be now tied together inside the kit to minimize dependency breakage while upgrading.
Pro No systemd
Still allowing one to run, for example, full desktop environment such as Gnome 3.20.
Pro `boot-update` to take care of bootloader configuration
A tool to update your grub config.
Pro Simpler template-based network configuration
Pro Funtoo Linux offers a variety of stage3 builds
Customized to a variety of CPU microarchitecture variants from AMD, ARM, and Intel.
Pro Stage3 sources are built using the Funtoo Linux tool 'metro'
It's a sophisticated replacement for Gentoo's build tool 'catalyst'.
Con Slow development
Con Software a bit slower to launch than for other distributions
Con Forums are not very friendly
Con There is often a black screen after update
Con An upgrade breaks the system quite often
Con No USB Image writer
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.