high storage density, but not very reliable when used in rack.
This is a consumer drive that offers very high storage density in 2.5 inch form factor.
However, when put in a server rack, these drives drop out of raid quite a bit and we have roughly 1 out of 12 drives die in a year.
Speed is acceptable when used for archiving (low rotational speed affects random access more than linear read/write).
So, overall: not very useful as 'cheap' raided enterprise storage, however likely ok as a high storage density SATA drive when used in consumer environment (low vibration environment).