Having built an entire app stack atop it, what's your opinion of ECS? Specifically on the scale of easy/works to painful/bend-to-will?
https://convox.com/blog/ecs-challenges/
TL:dr it works very well. It's very flexible. But Amazon is still very hard for a lot of reasons.
One piece of data to share is that with ECS we are effortlessly running hundreds of production clusters and thousands of test clusters.
I'm not sure we could do this if ECS didn't exist.
Scale has been great. We have customers running hundreds of containers on a single app without breaking a sweat.