Depends on the games you play. I like to place stuff on my PC so I'd make that trade, but if you do play a ton of stuff on xbox that you don't have on PC and still want, it might not be the best deal.
If you're going to sell it and have other consoles you'd do better to save the money from it and put another $600 on top of it for a $1200 build. You'll get way more bang for your buck in terms of performance once you get over the $1000 mark - $600 isn't worth the time it'd take to sell your x-box, find the parts you need to build a PC and put it all together.
depends on what games you want to play, can be hard for some console guys to convert. js, but yeah obv pc guys gonna say pc is better. in my experience console ppl are console for life.