I havn't tested it since a while, but it was pretty good and a lot simpler than MinIO.
Like in the old MinIO days, an S3 object is a file on the filesystem, not some replicated blocks. You could always rebuild the full object store content with a few rsync. I appreciate the simplicity.
My main concern was that you couldn't configure it easily through files, you had to use CLI, which wasn't very convenient. I hope this has changed.
Objects in Garage are broken up into 1MB (default) blocks, and compressed with zstandard. So, it would be difficult to reconstruct the files. I don't know if that was a recent change since you looked at it.
Configuration is still through the CLI, though it's fairly simple. If your usecase is similar to the way that the Deuxfleurs organization uses it -- several heterogeneous, geographically distributed nodes that are more or less set-it-and-forget-it -- then it's probably a good fit.