Yes, started with the playtest in the beginning and have been DMing from there.
Pulled out my old Greyhawk stuff, finding it fits very well with the system (for 4e I ran an Ebberron campaign and that seemed to fit well for 4e).
Interestingly, the mage died in the second session (months ago) and there has not been a mage in the group (of 5) until this Friday when a new player joined. The dynamic of the group did change, but not as much as I expected.
So far, everyone seems happy with their characters . It's been nice because the older players (both in age and time playing) had started grumbling about 4e, but the younger players have been perfectly fine with 5e (one actually told me he was surprised, he had not expected to like it as he was solidly in the 4e camp).