Its Windows 10 Pro (I know that has Bitlocker encryption, not sure what other features it has, or for that matter what it doesn't contain compared to Home), so Windows 10 Home is possibly better for a media player. You probably don't require the oomph of an i7, and I would go for a bigger SSD and a 1TB HDD as well.
I'm looking to buy from the UK offshoot of
Simply NUC USA as they offer a 5yr guarantee for a modest cost, as I can't be bothered to fix things! I'll probably make it dual boot so Linux & Windows.
However, the cost of the box bluelightning has is really good. There was an issue with multichannel PCM on some intel i3/i5/i7 but I can't remember which Gen it was, but it looks like the 4th Gen i5 in that box works OK.