What does linux give you over windows for straight htpc and basic functionality.
Maybe for tinkers and fiddlers of device ?
For me as media player it's spot on with kodi 14. 2.
Openlec. Always uses xbmc kodi as a down stream to develope.
Great job they perform. But if you have windows 8.1 why
Apart from anything else, Linux is free and all apps are free. You could turn the PCG03 into a decent home PC suitable for office apps, photo editing, technical drawing, music editing. etc. etc. all completely for free. Linux is also less resource hungry than Windows and runs faster. It also has a lot of dev tools for those who do want to tinker.
As a disclaimer, the futeko business runs entirely using Linux PCs..! So I am biased.
When Openelec can be installed on these boxes it will turn the PCG03 into a fast pure Kodi box where all add-ons work perfectly. Better if all you want is a media box, nothing else.