Exstock is an exchange from the UK and was launched in 2018 so it is relatively new. As we know the UK is not strict on regulations hence it is unlikely that this exchange has any license.
The exchange has some advantages like low transaction fee, very high uptime meaning no downtime. Also it is very secure as most of the assets are kept in cold storage.
However, this exchange has been reported to be a scam by its users, hence this exchange can by no means be recommended. Users beware.