NASWare is a good portion of marketing.
At a Synology event, the new RED hard drives were presented and the "advantages" were explained. Optimised for "built into small enclosures" (also available for HTPCs), vibration of neighbouring hard drives is less disturbing (also available for normal desktops), optimised firmware (you can believe this or dismiss it as hocus pocus), etc.
Other manufacturers now also have "NAS-tuned" hard disks.
I always had desktop hard disks in my older NAS and had no disadvantages.
Nowadays I still buy such "NAS tuned" hard drives because:
- Guaranteed 24/7 operation
- Mostly lower power consumption
- Mostly lower noise
The extra price is usually within limits and justifies these "real" advantages.
So in principle I would recommend "NAS tuned" hard drives (I'm thinking of switching to Seagate at the moment).
But you must not forget the most important thing:
No matter which hard drives you install -> don't forget a backup (I have an old Synology and a 3TB USB hard drive for the really important data).