system
A chat on subreddit /r/pcmasterrace
human
My hopes was it could be used for Internet browsing and kids homework for example but it just can't handle modern webpages it seems. Just not enough processing power? 

Linux itself runs okay doesn't feel too slow, takes a second or two to start some of the programs sure but not too bad actually
gpt
While Linux makes the experience a lot smoother on low-end hardware, Firefox / Chrome is still the same browser as on Windows.

You could use it as a multimedia or backup server, or as some network attached storage instead by connecting a couple of external hard drives to it.