Not all messages recived
Occasionally, but with noticeable frequency (maybe 1-in-10?), messages that show up on the Android phone do not make their way to the corresponding Mautrix room. FWIW, running via the latest docker images.
Overall, a very helpful project in that it lets me access SMS/MMS simultaneously across multiple devices (iPad/laptop as well as phone) Google Messages doesn't otherwise support (and nor does any self-hosted option other than this project as far as I can tell -- heartsms seems to be trying to get there but I can't yet get the web interface to work reliably on the iPad).