The UX303LA has a better storage medium than most laptops that came out more than two years ago. This portable PC has an SSD storage medium, whereas most portable PCs of this age and type 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 laptops of this type and age.
Across similar types of portable PC the worst storage medium is HDD.
If the storage medium of this portable PC is too bad for you then you might want to consider the T420s[pl_48433_price] (SSD), or the S540[pl_2433540_price] (SSD) both from Lenovo.