This is the best NAS I have ever owned!!! Just to show you how people can differ…
I use SCP/SFTP all the time remotely, never had any issues. I do not use FTP because it is unsecure.
I can load/unload data all the time without issues, locally or remote
I am using a static IP since day 1
Public is, as its name implies, Public. Easy to delete/rename and/or change writes access. Heck, you can even create any folder with any permissions you want very easily, all in the manual.
Ans yes, if you compare MBL to a USB drive, you will have lots of issues. It would be like comparing apples to orages.
Good luck with your next choice!
