Hangsen has a reputation for being hit and miss with their flavours, but this is certainly one of the nicer ones.
The flavour must be based on the asian variant of Blackberry, because it doesn't taste like the local or South American varieties.
The profile is not too acidic, slightly sour. You will appreciate it more with the wattage turned up, which will give it some more 'body'.
Being a synthetic flavour it has a slight perfume taste, but it is certainly more tolerable than some other more expensive berry eliquids I have tasted.
It's a nice flavour on it's own, but I think you will have more fun mixing it and trying with other flavours, and for the price why not.
Reviewed using: Uwell Crown 0.5Ohm @ 70W