Solus vs Nix os

Which means you don't have to suffer from version to version updates that can break it.

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.

The default desktop environment used by Solus is called Budgie and is quite nice and minimalistic.

The system itself is very stable. All packages in the repository seem to be carefully picked, well prepared and run stable.

System boots quickly and stays responsive. Does what operating system should do, and does it really well.

The software center makes it really easy to install the latest software through Snappy and Flatpak. Including third party software.

Very stable and well curated.

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.

The default desktop experience on the Budgie version is very clean and streamlined. Although the Budgie DE isn't the most customisable, but it's customisable enough for me to recreate the desktop style of ElementaryOS with the dock and bar at the top.

So you won't have to enable PPAs or extra repos for that.

The software is well curated in the repos, you have access to flatpaks and snaps, so virtually, all the software you'll ever need is there for you.

The only community who values the newcomers. Very helpful community.

It has all of hackage in it's package manager (which is confusingly named "nix" as well) due to being based around hashing and allowing you to compile in a sort of virtual machine (really just changing the PATH variable temporarily) it solves many of the versioning problems that you commonly have with cabal. Here's a tutorial (there's many others as well) http://www.cse.chalmers.se/~bernardy/nix.html.
Also I should note that you can use the package manager a la carte on Mac and most any linux distro.

Since NixOS stores all its packages in isolation from each other in /nix/store and because of the declarative configuration model, upgrading NoxOS systems is extremely reliable. Furthermore, it gives you the ability to roll back upgrades.

Every package in your system is generated from a configuration file. This makes it very easy to reproduce that environment. Just copy the config file into a new machine and it's done.

You can use and test snapshots without rebooting. Booting into snapshots or test configurations is possible without risking the system's stability.

As everything is isolated, you can have on the same machine multiple configurations to meet project requirements that would be mutually exclusive on other OSes.