The HP Pro has an SSD storage medium which is better than the HDD storage medium found on most many processor core portable PCs that have been on the market for a comparable time to 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.
This laptop's storage medium (SSD) is in fact the best storage medium across all many processor core portable PCs that were launched around the same time as the Pro.
Across comparable types of laptop the worst storage medium is HDD.
There are a number of alternative portable PCs that have an SSD storage media currently available that you might want to consider including the NP905S3G, or the NP905S3G both from Samsung which has better reviews.