Amazing system, once you get used to it you can't go back to anything else. On the SBus you can connect any device that is SBUS enabled, servos, gyros, telemetry sensors anything. You can also use SBUS without Futaba but have to use the 'Powerbus' connections of a PowerBox SRS devise that has this feature (Powerbus).
You assign the servo channel and that is it. You can connect it any point in the system. For an airplane with 10 servos or more with telemetry etc it makes sense obviously it might not make sense for 5-6 servos.
I'm very happy with it - really happy.
Tassos