I'm the author of the post and tech lead for K2. Happy to answer any questions!
After reading the post, still don't fully understand when you would use CF Queues vs K2. Can you help to elaborate a bit more?
Have I understood the pricing correctly? There's charges for data published and consumed per GB?
Great product, congratulation on launch. Are you using this internally in any way?
I'm doing some testing, and while my writes are <1s, I'm seeing E2E delivery latency of p95=2.5s / p99=7.5s. Is this roughly expected?