This is a powerful little box that does just about everything you could ever need.
Not only does it happily serve up all my files over the network, it does it fast and with every protocol I've ever seen. SMB? Check. iSCSI? Check. NFS? FTP? Rsync? Yup.
With the ability to run virtual machines (and Docker containers!), I was able to have it take over my power-hungry PC running 24/7 as well as a remote VPS VM I was paying for. It'll eventually pay for itself with power savings and the monthly cost of the VPS.
The interface is great. Very easy to use and very clean. It offers tons of packages you can install to provide various services to your network.
Customer support, while maybe not super fast, is also great. They were able to remotely fix an issue I had come up with the virtual machine manager.