The Lenovo Flex has a better storage medium than most notebook PCs of this age and type. This portable PC has an HDD storage medium, whereas most 2 in 1 laptops that were launched around the same time as it have an SSD storage medium. 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 across all 2 in 1 laptops that have been on the market for more than a year.
An SSD storage medium is the best storage medium across comparable types of laptop.
We think you might also be interested in some of the other portable PCs that have an HDD storage media currently available including a cheaper laptop such as the Pavilion x360, or the ENVY x360 ($1,349.98) both from HP or you might consider a higher scoring laptop such as the Lenovo Yoga 2 11.
If the storage medium of this portable PC is too bad for you then you might want to look at the Acer Aspire Switch 11 SW5-171P (SSD) which is also cheaper.