Today i put SIM to my Xperia and i am a bit astonished. With my Nexus 5 LineageOS I could not make Linphone audio working but with SailfishX it worked flawlessly! So did Skype and Whatsapp! So as far as I am concerned I am super happy with what I just got with SailfishX. It is better for daily driver than my Nexus with Lineage.