I definitely would not buy that device. Here's why:
Both soft and hard keys (poor design), both in the wrong order (worse design)
Obvious Samsung clone style icons.
Weak processor
Low RAM
Low storage
Tiny battery
Old, outdated software.
OEM is not trustworthy for updates
OEM is not trustworthy for security
Bad display
Outdated charging tech
If you're looking for a rather inexpensive phone, check out the Moto G, Nexus 5X, OnePlus 3T, Axon 7, Moto Z Play, etc, etc.