Yes, it was much easier having MATE in the Ubuntu repositories.
I have not tried the Ubuntu Mate distro, since it is easier just to add MATE to my Ubuntu install, and the fact that I do not need to install a different distro every time I want an upgrade - like Linux Mint with MATE makes me do. It takes a bit of time to rebuild the systems after changing/upgrading from one distro version to anouther, with all of the packages to be reinstalled and all of the .config files to update to my needs - i.e. Thunderbird's email settings and such, Firefox's bookmarks and specific saved passwords, Filezilla's site management config files, etc., etc.. I do not even want to think about what I need to do to get one of my printers to work properly on Ubuntu 14.x and newer, since 14.04, it no longer supports the needed drivers that control the color output of graphics.
In the past month, I have switched out 2 systems from Linux Mint to Ubuntu 14.04 [or better] and have two more to convert, while doing the much longer process to keep the printers working properly [i.e. install 13.10 first and install the printers, then upgrade to 14.04, and then do the upgrade cycle to 15.04/10 if wanted].