Distributed Filesystems for Linux?

zoneball asks: "What would you use for a distributed file system for Linux? I have several GNU/Linix machines running at home, and wanted to be able to see more or less the same file tree (especially all the ~user directories) regardless of which machine I'm connected to, and where the traversal into the distributed file system space is largely transparent for the end-user. Are there any URLs or documents that compare the features, bugs, road map, stability of these and other distributed filesystems? Which offers the best stability and protection from future obsolescence?"

Zoneball looked at 3 distributed filesystems, here are his thoughts:

" Open AFS was the solution I chose because I have the experience with it from college. For performance, AFS was built with an intelligent client-side cache, but did not support network disconnects nicely. But there are other alternatives out there.

Coda appears to be a research fork from an earlier version of AFS. Coda supports disconnected operations. But, the consensus on the Usenet (when I looked into filesystems a while ago) was that Coda was still too 'experimental.'

Intermezzo looks like it was started with the lessons learned from Coda, but (again from Usenet) people have said that it is still too unstable and it crashes their servers. The last 'news' on their site is dated almost a year ago, so I don't even know if it's being developed or not"

So if you were to recommend a distributed filesystem for Linux machines, would you choose one of the three filesystems listed here, or something else entirely?