This product was Ok, I replaced 2 units already cannot really say are 5 stars but in general ok.
It is quiet, not really fast as I see, 5200rpm perhaps.
Reliable ? I am not sure, I replaced 2 units in 5 years' time, in my 4-bay NAS.
I think this product is Ok, not super, and cannot just much as I don't have other similar numbers of HDD to compare.