Having used ECS quite a bit, I do not recommend anyone building a new stack based on it. Kubernetes solves everything ECS solves, but usually better and without sveral of the issues mentioned here. Last time I checked, AWS was still lagging behind Azure and GCP on Kubernetes, but I have a strong feeling they're prioritizing improving EKS over ECS.
If you're already invested in ECS it's a different story, of course.
If you're already invested in ECS it's a different story, of course.