I have a similar config with the apple devices configured on a "apple vlan". I don't use vlan pools but I don't see why it would be much -or any- difference. But i'm using the bonjour / mdns relay capabilities of my firewall instead of the ruckus APs. In this way I don't need to muck around with client isolation and it just works. But if you're going to use the wlan gateway of the ruckus APs, just make sure you have all you apple devices in a single destination vlan and subnet.