Cancoin is similar to localbitcoins in that it's peer to peer however we believe Cancoins' security is more robust and able to handle trust for larger amounts of btc. Cancoin aims to provide a higher level of functionality and individual security than any other bitcoin exchange in the world.
Frankly speaking,I expected a technical specification on how exactly canacoin is different from all the other exchanges when it comes to security.LocalBitcoins probably tops the list because their escrow services are Great.No vulnerabilities at the client side since most of the processing is done at the escrow only.Escrow holds the trade payment unless the user decides to release.The buyer always can raise disputes if the escrow isn't released after the payments.Most importantly,their support.