The Aspire ES1-111m has an SSD storage medium which is better than the HDD storage medium found on most medium processor core notebook PCs that have been available for around the same time as it. 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 notebook PCs that were launched more than a year ago.
The worst storage medium across similar types of laptop is HDD.
If the storage medium of this Acer notebook PC is too bad for you then you might also want to consider the Elitebook 820 G2[pl_2886802_price] (SSD), or the EliteBook 820 G2[pl_2897415_price] (SSD) both from HP.