If all you need is basic remote file storage such as a samba server, and especially if you need samba in particular, then your current solution is probably a better fit for you.

Copyparty's main selling points is the large number of features in one package, and being pretty good at receiving file uploads (usually faster than other alternatives), but it does not have good samba support. Instead of samba, copyparty has WebDAV support, so you can still connect to it from your file manager -- but the performance will be different; depending on your access pattern and the type of files, it could be faster or slower than samba.