Same for us, though they have outages more often than I'd prefer. Half the time when we get a PagerDuty alert, it's because Scalyr is screwed up and not ingesting our logs, not anything wrong with our systems.

But when it's not having an outage, it's lightning fast and easy to use. I especially like that you can do basically 100% of the configuration (aside from stuff like billing info) by uploading JSON files to them, so you can keep all your parsing and alerting configuration in your own version control system.

Second this. Love scalyr. Very fast/efficient setup and fast/efficient interface. Great API which allows config to be stored in version control.

ditto. we've got maybe 4,000 logs/second going to scalyr. it's fast, has good features, and is easily searchable (with structured logs).

yup, also my favorite of all the saas platforms.