s3fs-fuse is a one-to-one mapping and doesn't do things like atomic rename of directories, mutual exclusion of open exclusive, append to file requires rewriting the whole file and no hard links. This breaks the expectations of many linux programs.
Our implementation has these features and works with linux programs.
It's difficult to tell from your site - does it still use FUSE under the hood or is this a kernel-level FS? I'd check the RPMs if I could, but I can't download the RPM without signing up first.
Our implementation has these features and works with linux programs.