Hi, I have built a new home and from the modem location I have wired some CAT6 to the extremities with the plan to install access points if wifi was poor. Now we have moved in, it is poor. The house is 2 stories and has concrete walls.

I have been reading up to work out what I should go with and now am confused. Should I consider the Deco mesh system? Or the powerline connection version or stick with the access point option? And which model as there are numerous?

I planned on 2 access points now with a possible 3rd one if required. 

We only require movie streaming. We currently have a 25mbps internet plan. 

Thank you