The GS70 2QE has an SSD storage media which is better than the HDD storage media found on most laptops of a similar type and age to it. In addition, this portable PC have an hdd and ssd storage media. Solid State Drives (SSD) store data in semiconductors on a circuit board rather than using magnetic or optical media. Solid State Drives have no moving parts which makes them very fast and reliable.
An SSD storage media is actually the best storage medium across all many processor cores laptops that have been around for around the same time as the GS70 2QE.
Across comparable types of portable PC the worst storage medium is HDD.