[MaxGanzII]

The minimum cost for serverless seems quite high - 14.4 USD per hour.

The advantage is the flexibility to easily change compute resource. A disadvantage is that your data is now in S3 or something very like it, and this I think alters the characteristics of write performance, for the cluster; I've not yet looked into this, but it's on the list.

You absolutely should beware of falling into the trap of imagining that serverless simply gives you flexible compute and that's the only change to behaviour.

AWS in their press releases and docs are relentlessly positive - anything which is not a strength is obfuscated - so only actual experimentation and investigation throws light on what you're really getting.