Orbi Overkill for 3 story town house?

I live in a 3 story townhouse. Each floor is fairly compact (Long but narrow). I bought an Orbi set (RBR850). I have the main router on the main floor of the house. I have a satellite on the top floor and one in the basement. I also made sure to use the wired drop on each floor to connect the satellites so there should be a highspeed backplane for them. It wasn't until just recently (like in the last month) that the satellites started showing that devices were connected to them. And it still seems to be a bit random as the satellites are showing devices with fairly week signal (2-3 bars) connecting to them. It makes me think it is not doing the handoff to transition devices to the strongest signal device. Also even though the satellites are hard wired to the router through the cat drops on each floor, they always only shows as 5Ghz wireless connected to the base instead of wired. Just wondering if the size of the house isn't big enough to really get the benefit out of the mesh. And if there is anything that can be done to enforce or at lest set a preference for the wired backplane?

Technically in my office in the basement, the main floor router is only about 10 feet away (pretty much directly above me) and the basement satellite is actually about 20 feet away (on the same floor as me though). Just looking for any thoughts or suggestions. They are about a year old and I still have the replacement plan with BestBuy. So if there is something that would work better for my particular situation, I am all ears