I've found band steering with the Omada controller and EAP245s to be quite wanting. Obviously, this depends a lot on the client device, but there could be improvements with the EAP firmware/Omada controller.

For example, despite having an RSSI in the -50s, my iPhone XR will insist on connecting to the 2.4GHz network (which is congested and has interference). There should be some settings for band steering around enabling the controler to force or prefer compatible devices to connect to the 5GHz network.