I had it on my flight from DOH-JFK. Actively requested from the crew, not sure if they proactively offered to others but it seems most fell asleep on their own soon after take-off as most didn't partake in dining.
Crew was very attentive - found service style to be more Asian (a la SQ etc.) than European as is often the case on EY / EK, and my Korean FA was more than happy to help with the bed when I asked.