Powerline/EOP wifi in house ~roaming~

Ive a question re Powerline/EOP wifi kits

Ive setup the remote powerline device to have a different SSID than the router's Wifi, to ensure that the laptop/whatever will be connected to the most appropiate wifi access point . ie if downstairs, the manually connect laptops wifi to "downstairs" SSID & vice versa when upstairs

If I set the powerlines SSID to match the main wifi AP's SSID , so there is just the one wifi SSID, I assume I may run into issues with devices not connecting to the strongest signal AP ? ie when downstairs the laptop may try & connect to the upstairs access point/router