[x3al]

I guess it depends on size of your app and expected load.

When your app is small and you got almost no users, zappa is great: your lambdas are lighting fast and you're in aws free tier.

When your app grows to like 200k SLOC and 50+ lines in requirements, chances are that it starts quite slow. Do you really want to pay for that?

When your load is high enough, well, aws lambdas become quite expensive even without zappa overhead compared to, say, EC2. https://servers.lol/ should say if serverless makes sense for any defined usecase.

Additionally, lambdas have hard restrictions (like 15 minutes limit) and sometimes it's a dealbreaker for you.