The LG 13Z940 has an SSD storage medium which is better than most notebook PCs of this age and type. Most notebook PCs that have been available for around the same time as 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 actually the best storage medium across all portable PCs of a similar type and age to the 13Z940.
Across comparable types of portable PC the worst storage medium is HDD.
It may also be worth considering one of the alternative notebook PCs that have an SSD storage media currently available including cheaper laptops such as the Tecra Z40[pl_2355836_price], or the Tecra Z40[pl_2355836_price] both from Toshiba or the Lenovo ThinkPad E550[plb_2870445_price].
If you would prefer a notebook PC with a better storage medium then you might also want to look at the Lenovo L540[plb_2993337_price] (SSD).