Private network with Cluster

I need your opinion as I believe your knowledge is deeper than mine.
Task: I need to up and run a private IPFS network.
Question: Cluster of peers vs regular IPFS daemons. What is the benefit of using a Cluster as I could disable garbage collections and in this way my files will be “pinned”? I believe using Cluster all of the pins will be shared and in this way, the response time could be faster compared to the regular IPFS daemons. However, this could be valid only for the beginning. After a file has been searched several times, it will be shared among more daemons and the response time will decrease, right?

Please, give me your opinion