It is pretty cool what you can do with these little things, I initially bought it to use it as a retro console. But I lost interest in that pretty quickly so it had been gathering dust for some time until my other NAS ran out of space, so I thought do I really buy some expensive pre-built NAS again or just try out this little guy I have lying around? It surprised me how well it actually works most of the time, although I recently noticed that I too sometimes have issues serving 4k content, even though my player does the decoding/transcoding, but that could also be some other bottleneck on my network.