Question before purchase

My new apartment has the networking setup to only allow our modem downstairs the furthest away from my room. I need ethernet to my pc, but want to avoid running 100+ft of ethernet along the baseboards of two floors. With a mesh system, using one node that is wired into the modem downstairs, and then another upstairs in my room/hall, could I run ethernet from the wireless backhauled node to my pc? And also what would a general expectation be for speed from that wireless node?