We are currently working on Filecamp v4 (gigantic update!) which will address the issues you have experienced!
Other headlines are; new user interface, better performance, full mobile/touch compatibility, folder upload, FTP mount, easier user management, advanced search features, improved online proofing/commenting, more notification options, bulk adding of tags, more metadata options, auto-tags, custom pages ... and a lot more.
The good news is that Filecamp v4 will be awesome!!!
The bad news is that it will probably take us another 5-7 months before we can release it, and I hope you can wait.
Do reach out to me if you have any questions.