My two years with UnRaid... Just looking around my unRaid server, and checked my license manager after making a backup of my flash drive (just in case I need it) and I noticed it's been over two years since I bought this software.
Let me say it's been so easy and painless to use. For me at least, this is a huge improvement over running the latest Ubuntu server and apt-get'ing packages I use as compared to VM's, Docker and unraid updates.
I would tell anyone on the fence about spending $ for unraid to just do it! You won't regret it.