It's made by JFrog (makers of Artifactory), it's been around for while, it supports lots of formats including harder ones like apt, and it makes package distribution about as easy as it can be.
I tried it years ago and it didn't offer signed packages at the time. I ended up just using ansible to build my own rpm/deb repos on a server given to us by a University:
Their support is the worst. I anticipate a 4 day turn around if I ever need to contact them. Scary really.
Their Gradle plugin is pretty bad too; kinda ironic given their prominent position in the Android and Java community. But then, Gradle itself is crazy town so it's hard to blame them too much.
It's made by JFrog (makers of Artifactory), it's been around for while, it supports lots of formats including harder ones like apt, and it makes package distribution about as easy as it can be.
[1] https://bintray.com/