The first thing that I found impressive about how @Walrus 🦭/acc is integrated with Sui to operate its storage network is the smart separation of concerns that ensures the systems remain scalable and consistent. Walrus does the data storage heavy lifting of operations off chain, and Sui offers the on chain layer that coordinates the operations and offers a global and consistent view of the storage nodes. Such division guarantees the network is not centralized and synchronized but not hitched to a bottleneck. 
The control plane of Walrus is Sui. Each node registration, committee assignment, and availability proof is done on Sui, building upon its high throughput consensus and object centric model. This results in a single truth in the whole system.
To be a part of the network, storage nodes post pledge $WAL on Sui. Staking is documented as Sui objects, which can be seen by everyone involved. Delegation by the holders of $WAL is also possible on Sui, and thus, the network is able to monitor the distribution of the stakes in a transparent manner.
Selection of committees in storage work based on deterministic randomness of Sui, which is based on the previous block hashs. This makes sure that all participants will have the same composition of the committee at any one time period and therefore globally consistent.
Sui forms the epoch transition points. In the beginning of every epoch, Sui documents fresh panel pegged on the past performance and stake. This on chain log makes it impossible to fork or dispute who owns what slivers.
Evidence of Availability certificates on blobs are mined into Sui objects. These certificates provide a verifiable, cross network perspective that information is stored in the appropriate way, and any node or user can query Sui to make sure that the information is stored without having to query the entire storage layer.
Performance metrics of nodes such as uptime and challenge responses aggregate on Sui. The distribution of rewards at the end of the epoch is computed and done in Sui transactions, with equal and predictable payouts depending on the state of the shared network.
In case of a misbehaving node, slashing suggestions are placed and determined on the Sui. The completeness of the blockchain will ensure that punishment is equally administered, and the world trusts in this perspective.
This close integration with the abilities of Sui, to my mind, makes Walrus very strong. The protocol is scale performing and reliable by unloading data to a decentralized node and relying on Sui to maintain a consistent and tamper proof record of node states and place assignments.
