i signed up for a test account for a POC i'm developing, went through the whole rigamarole of setting up spf and dkim and all of that, successfully used their API and... nothing. no delivery of any email to my own domain. no response from support, since i haven't paid yet i guess.
seems like they want to eject their more sophisticated dev customers. guess i can't blame them, but why bother, just shut the damn thing down instead of wasting everyone's time.
Tons of downtime, worsening delivery problems, no active development -- or support even -- for years, worse pricing, ...