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Linux Mint is a community-driven Linux distribution based on Debian and Ubuntu that strives to be a "modern, elegant and comfortable operating system which is both powerful and easy to use." Linux Mint provides full out-of-the-box multimedia support by including some proprietary software and comes bundled with a variety of free and open-source applications.
The project was conceived by Clément Lefèbvre and is being actively developed by the Linux Mint Team and community.
SpecsUpdate
Pros
Pro Easy installation and configuration
Linux Mint uses the same installer as Ubuntu. It is very easy to use for beginners, and also allows more advanced users to choose their own partitions. Linux Mint's Cinnamon desktop is highly customizable and can be made to look however preferred.
Pro Familiar user interface
Mint is highly recommended for both users coming from Windows, as well as users coming from Ubuntu, but unhappy with Ubuntu's recent, rather dramatic interface changes. Mint provides an updated interface with a look and feel similar to Gnome 2, with an application menu reminiscent of the Windows 7 Start Menu, with categorization and search.
Pro Provides LTS (long term support) versions
Long Term Support versions are versions of software that are continuously updated for an extended period of time, even after newer versions are launched. LTS versions will typically get feature additions and enhancements for an extended period of time, then security updates up until its End of Life. An LTS release should typically be considered good for at least 5 years.
Pro Already functional out-of-the-box
Mint comes bundled with software for browsing the web, editing pictures, browsing files, watching videos and even a full office suite (LibreOffice). An average user can use Mint right away after a fresh install, using all the software that comes with the distribution to complete most of their daily tasks.
Pro 2016 hack listed here as a Con, was very quickly dealt with and is a non-issue over 4 years later.
Pro Mint 20 will actively avoid the Snap landmine planted by Canonical in Ubuntu 20.04.
Pro Popular
Linux Mint is currently the most hit page on DistroWatch. Because of its popularity, long-term support is pretty guaranteed.
Cons
Con Looks ugly
The default theme and wallpaper looks outdated and bland. Luckily that is easy to change in the settings.
Con Limits to the support of propriatary hardware drivers
Mint has limited support for older graphics cards beyond the generic nouveau driver, and some software (like Stremio) only works with official Nvidia drivers (for example).
Con Upgrade process between version can be painful
The Linux Mint team offers a method to upgrade the OS between versions but they tend to recommend clean installs, which isn't always suitable for everyone. However, following the upgrade process currently is less than straightforward and is easily capable of leaving your system in a confused state.
Recommendations
Comments
Out of Date Pros + Cons
Con Mint 19 forces unwanted updates
Since version 19 Mint adopted Windows 10's policy to force the user to install unwanted updates and even if the user deselects them and marks them not to be installed, they're still being installed.
Con The Update doesn't work sometimes
Sometimes the update failed to configure a package.
Con The Linux Mint website once provided spyware
The website for Linux Mint was hacked in 2016 and its download links led to a modified ISO, which contained spyware.