Well, hopefully this helps to fix the issues with EBS that are cause for complaint....

Looks interesting, looking forward to trying it put to see how it performs.

As someone whose team used the beta of this product - No.

There's not really any mention of latency or what amount of concurrency is needed to hit the guaranteed level of IOPS. Is it an SSD with very low latency or just ten slow big hard disks striped together?

Color me skeptical, I predict those who pay for more IOPs will howl even louder. I think by now EC2 users have learned that EBS doesn't act like a typical disk drive so treat it like one.

This still doesn't compare well to alternatives, pending benchmarks with an actual application if I directly compare it to most other IOPS benchmarks.

So...no? I mean, I don't have to complain about EBS, it's really simple, I just don't use Amazon's stack therefore I have nothing to complain about.

Now if I was somehow stuck on their stack...like from building my product against their proprietary infrastructure...then I'd be stuck on my ass and complaining for an overpriced and underperforming service.

Their recommended solution is to use their proprietary KV store.