The Lenovo Flex 2 has an HDD storage medium which is better than the SSD storage medium found on most similar spec notebook PCs that have been on the market for a comparable time to it. HDD is a traditional storage drive which stores the information on magnetic disks. HDD drives are slower than other forms of storage such as solid state drives (SSD) and flash drives.
An HDD storage medium is in fact the worst storage medium amongst all 2 in 1 laptops that came out more than two years ago.
The best storage medium amongst comparable types of notebook PC is SSD.
We think you might also be interested in some of the alternative notebook PCs that have an HDD storage media currently available including cheaper portable PCs such as the FLEX 15, or the Flex 10 both from Lenovo.
If you want a portable PC with a better storage medium then you might want to look at the Toshiba Satellite U920t (SSD) which is also cheaper.