The Inspiron 11 3147 has an HDD storage medium which is better than the SSD storage medium found on most laptops of a comparable type and age 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.
This portable PC's storage medium (HDD) is in fact the worst storage medium across all 2 in 1 laptops that came out around the same time as the Inspiron 11 3147.
An SSD storage medium is the best storage medium across comparable types of portable PC.
There are a number of alternative notebook PCs that have an HDD storage media currently available that you might also want to consider including the Yoga 2, the Yoga 2 13, or the Flex all from Lenovo which is cheaper.
If the storage medium of this DELL notebook PC is too bad for you then you might also want to consider the Lenovo ThinkPad Yoga (SSD), or the Acer Aspire Switch 10 ($345.99) (SSD) which is also cheaper.