Hi Lisa and Josiah,
Unfortunately, we've decided not to fund Sunshower.io this batch.
This was a tough call - that's why we asked to come back to interview a second time - because we really liked you two as founders. You're a team we would like to see in YC.
However, we weren't convinced that the Sunshower idea was promising enough to fund. AWS cost optimizers is actually one of the most common ideas that applies to YC, so we've read dozens of applications every year from companies working on this. That doesn't necessarily mean it's a bad idea to work on, but it probably means that there are some significant reasons why it's difficult to do, and we didn't hear any specific insights about why you wouldn't run into the same issue that other companies have. The biggest issues, as I understand them, are that actually implementing these recommendations is challenging without causing downtime, and that engineering resources are super expensive and scarce, so that spending engineering time to save money on AWS costs is a bad trade unless the cost savings are huge. In your case, it seemed like you had already run into a lot of these issues with your already customers, along with the issue of reserved instances.
That said, we assume that someone will eventually crack this, and maybe it will be you. It's possible that the rise of kubernetes and containerization will make these problems finally tractable. If you do make more progress getting customers and show that you can actually get them to take your recommendations and save them money, we'd certainly be happy to talk again next batch. And if you would be interested in brainstorming other ideas with me at some point, I'd be happy to do that too.
Thanks very much for coming out here to interview with us in person. I really enjoyed meeting you and hope you'll keep in touch.
Best,
Jared