Ranked in these QuestionsQuestion Ranking
Pro Perfect for people who like Gnome 2
The goal of MATE is to maintain the look and feel of Gnome 2, while maintaining compatibility with Gnome 3. To that end, it has also forked and renamed many of Gnome's core applications. It benefits from the years of work and polish that have gone into Gnome project.
Pro Simplicity of Gnome with the power of Ubuntu
Debian was good to use but limited documentation and difficult to pick up, Ubuntu MATE brings the ease of design and logic of the Gnome 2 style desktop so it's easy to get around coupled with the vast documentation, forums and ease of leaning/using the Ubuntu system.
Pro Works great on old laptops
It does not have a lot of system requirements so it works pretty well even on older laptops.
Pro Highly configurable
Comes with an option to configure as Windows-like, Mac-like, Gnome-like etc. In a single click. Wonderful to get you started without having to learn it all from scratch.
Con Not bleeding edge
Users who want the latest and greatest software would be happier using Arch Linux, Antergos or another rolling release distro. However, because Ubuntu MATE is based on Ubuntu, users still have access to a large repository of recent software.