Ask HN: How's Amazon SES deliverability these days?

I've been using Postmark for a while, but in light of the recent (long) outage with no communication whatsoever, I'm considering switching to SES. The fact that Postmark has laid off most of their team members doesn't inspire confidence either (https://x.com/matteosonoioo/status/1835767887862096110).

How is the deliverability of Amazon SES? I'm sending around 300-400 emails per month.