I have one of the first Windows Home Servers and man is it nice. However, it started failing, and it may yet continue.
Since the software is SO old, recovery was difficult. Wouldn’t work with any of my 64 bit Windows 7 Machines, so I grabbed an old Windows XP machine and it worked fine.
I had time to move everything off, and it took awhile, but everything is up and working again.
Why do I like it? It backs up every system I have set up automatically, and restoring is a complete piece of cake. You can store data on it, but I’ve moved the data to a more modern server. Pictures, movies, and the like.