- Sometimes long-deleted folders pop up when older version clients connect
- Syncing or connecting takes sometimes ages to start for no obvious reason, client not giving enough info on what is happening
- Relation between clients is not obvious, the powerful configuration options are hard to decipher after some time
- The project could start a (freemium?) cloud client option, maybe leveraging other providers for storage. Most people will not be able to set up a server, and without that it's just way less practical for the layman than any mainstream option.