It is very stable, fast to install (even with old computers), it has many different flavors of Linux that can be installed depending what your needs are; for example I have Ubuntu 16.04 LTS, Kubuntu 18.10 & Xubuntu 20.4 in my server because they all fit perfectly into our system requirements. There's nothing really bad about this distro but sometimes you run across some quirks or bugs here and there which could potentially cause problems if not addressed quickly enough by their support team. We use MIPS as we build embedded devices such hardware controllers so stability was important since most software runs on top of them anyway and therefore any instability would make us think twice before using those products again.