Yes. Z is pronounced like з / z, s is like ш / sh, zs is like ж / zh and sz is like с / s.
Hi, the comma after word szia is always required? Or would it be gramatically correct even without it ("Szia Zsuzsa, hogy vagy?")?
I'm pretty sure it is required, but many people leave it out. Though I don't know if the new grammar rules changed this or not.
"hello, zsuzsa, what's up" doesnt work... should it? "what's up" seem to be more informal way of saying "how are you"...