ArchLinux can be quite stable, but I would recommend using whatever distro your code will run on in production, so probably CentOS 7, Debian, Ubuntu LTS, etc. Having your library versions stay constant would probably make development easier. … I’ve been using Arch for work during the last five years.

Is Arch Linux secure?

Everything that Arch releases is signed ([1]), so it is possible to verify that whatever you downloaded was created by an Arch Linux developer. However, there are no background checks and no security audits. A developer could be evil, or his private key could be stolen.

Is Arch Linux worth it?

Absolutely not. Arch is not, and has never been about choice, it’s about minimalism and simplicity. Arch is minimal, as in by default it doesn’t have a lot of stuff, but it’s not designed for choice, you can just uninstall stuff on a non minimal distro and get the same effect.