It's all up and working quite well now. I actually haven't had a chance to test both repeaters until just recently. They both work, and I now finally have my most 'remote' sensor connecting to the mesh via the repeater closest to it:
For info, Repeater 1 is about 6m away from the coordinator, through one wall, and Repeater 2 is about 10m further away from Repeater 1, through 3 walls.
It took a bit of of mucking around with re-pairing sensors to get them connecting to the right repeaters, but for now it seems to be working as planned.
