The Lenovo L450 has a better storage medium than most medium processor core laptops that have been on the market for around the same time as it. This Lenovo laptop has an SSD storage medium, whereas most laptops that were released one year ago 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.
This laptop's storage medium (SSD) is in fact the best storage medium across all portable PCs of a comparable spec and age to the L450.
The worst storage medium across similar types of laptop is HDD.
There are a number of other portable PCs that have an SSD storage media currently available that you might want to look at including because of it's better review score, the Satellite Z30[pl_2363540_price], or the Satellite Z30[pl_2363540_price] both from Toshiba.
If the storage medium of this notebook PC is too bad for you then you might also want to consider the Lenovo T550[plb_2916140_price] (SSD), or the DELL Latitude 14 E7450[plb_2882106_price] (SSD).