Is OpenAFS Robust Enough to Replace NFS?

eskimoe asks: "Has anyone been playing with (OpenAFS) lately? It looks very promising and claims to be kinda stable now. Unfortunately Google didn't find any reviews when I last searched. This surprised me, considering what I would suspect to be a not-so-small percentage of sysadmins who would absolutely love a secure, not-as-broken-as-nfs, not-depending-on-braindead-RPC-stuff, not-relying-on-client-for-authentication network file system. The other available alternatives such as CODA, various nfs-patches/branches (generally addressing one NFS design-bug at a time while causing more problems) or SMB-only environments have never reached the state of functionality and usability necessary to actually become a serious NFS-killer. So, would you deploy AFS in a production environment, yet? Has anyone tried?"