I have two HDD’s on my PC. One contains only Windows 7 and the other has two Linux Distros. My primary Distro is KDE, as I like it the most. I was using Mint 17.3, but have changed to Neon LTS.
The second partition I use for trying new Distros. I have installed Mate 16.04.2 LTS and I really like it. The only major problem I had was, taking ownership of my windows partitions. I could not change them from root to me. After a lot of Googling, I found the answer, by modifying /etc/fstab
I had tried Solus Budgie, but that was a disaster. UM has all the tools of Ubuntu, which I am familiar with from both Mint and Neon, so I feel right at home. I learnt a long time ago to make disk images before changing things, and this has been a blessing as I mucked up UM while learning to drive it.
I am no Linux expert or geek, and in my mid-sixties, so learning new things takes me a bit longer nowadays. From what I have seen so far, UM will be staying on my HDD as my secondary Linux Distro. It is a polished Distro that is a pleasure to use. I think I will have fun exploring what it can do.