What we like
The Arbitrum bridge has the ability to send messages between the Layer-1 (Ethereum mainnet) and Layer-2 (Arbitrum network), which allows for trustless moving of assets between the two networks.
What we like less
Arbitrum currently uses a centralized sequencer that is operated by Offchain Labs. It has the ability to control the ordering of transactions which could lead to the sequencer front-running transactions and profiting at the user's expense.
What it means for you
The Arbitrum canonical bridge is one of the safest bridges for you to transfer your crypto assets from Ethereum to Arbitrum in a simple and relatively fast manner.