In the case you need to write on NTFS filesystem based devices, then I would suggest
Tuxera instead of the Paragon NTFS.
The reason is simple:
on every new OSX version (major version I mean here) the Paragon releases a "new" version then you simply can't be update (they do offer a such update in the case you got the older version... one month ago, ridiculous) , so they milk you to pay again and again.
This is not the case of Tuxera,
So, keep this and avoid the Paragon.
The Tuxera NTFS is a bit slower than the Paragon, as I read on some sites.
I never bothered to run any benchmarks. In fact we use at home the Mac to copy/sync files from external hard disk (NTFS). It was not a big deal until we realised that some files we copied on the NTFS were ... corrupted.
I bet it was something about the Paragon NTFS as they just released the v12 of their software , labeled as "Yosemite compatible".
In the meantime we just got the full version of the
Tuxera . What is cool is that Tuxera releases too a
community version of the NTFS-3G, its a bit slower than the full version, but not too bad if you only want to write some files into an NTFS volume, not like me that I have to share a couple of NTFS external drives with the other members of the family, we sync in fact our work there as backup.
One could ask, why we still use NTFS and not exFAT or FAT32, both of those formats can be R/W by the Mac, but , for one reason, I want to test from time to time system images that are over 4GB (FAT32 limitation).
The second reason is that the NTFS is journaled, while the exFAT is not, so, mind, that the external HDDs have too our backups. I would not risk the backup files to be held on an non-journaled filesystem.