Just to offer perspective from the other side, we've been using their product since 2015, we send millions of events through Segment every day without a problem.

There was one short outage I can remember in 2015, the only other issues we ever had, we traced back to misconfiguration on our side.

I think Segment's core code is _really solid_, it shows in how fast a relatively small company is able to iterate, update and release new product.

I think their biggest challenge is educating potential users on what they do (no exact competitor) and educating new users on how to set it all up properly (gotta read the documentation.)