Home network improvement suggestions - powerline or router

Hey everyone, first time poster here so please go easy on me. I hope this is in the correct section.

I'm looking to improve my home network performance.

I live in a small-ish apartment so I deal with the usual wireless network issues that come along with that. I'm fortunate though because my complex provides me with a dedicated 1Gbps line. The problem is that the only ethernet jack to plug my router in is in a horrible location. Here's an image that shows my floorplan as well as where my...

Home network improvement suggestions - powerline or router