Pros:
- many gateway to deposit/withdraw the coins (openledger, rudex, cryptobridge), so you avoid the failure of a unique company
- your balance is on a blockchain and not in the private database of a company, so no one can manipulate your funds
- shared order book that interconnect all the gateway and let you buy on one exchange and send to another without moving your coins out/in
Cons:
- harder to understand
Con? to someone willing "to understand" this might be not a real CON
Ha ha "harder to understand" your funny, thanks for your explanation sounds like some real "next-level" stuff... =)