Does anyone have experiences with 5S?
Is my setup in the signature compatible (rrosd)?

Your 4s battery is not 5s compatible. Just kidding... critical parts are escs and PDB (voltage conversion, if used at all).

Unless you have the pretty new Aikon 2-6s escs, i can just guess that you have a 2-4s version. While i've read that some 4s-escs out there can deal with 5s when using light small props, personnaly i wouldn't risk it without some serious testing before going airborne.

Don't know anything about rrosd, never used OSD at all.