It's simple interface allows you get started with very little knowledge of trading or investing! They have many markets which makes it easy too compare prices across different coins/cryptocurrencies at once as well as having an auto-trade feature built into their app (which I really enjoy). No account verification other then your phone number - so make sure they've got security measures set up properly if sending sensitive information such has bank details etc., Otherwise there are no real cons about using them; however some may find certain services within can be limited by region / location e g USA only when trying from elsewhere.