The Pavilion x360 13-s052sa has a better storage medium than most medium processor core laptops that came out around the same time as it. This HP laptop has an SSD storage medium, whereas most medium processor core laptops that are a comparable age to it have an HDD storage medium. 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 medium is in fact the best storage medium across all portable PCs of this age and type.
An HDD storage medium is the worst storage medium across similar types of laptop.
If you want a notebook PC with a better storage medium then you might want to look at the DELL XPS 13 (£491.53) (SSD).