Memories have mostly been detrimental to me, I have disabled it completely after many moments of frustration.

In general Claude would decide to save irrelevant memories, or apply a memory that was lifted during work on a project to a completely different context where it wasn't relevant, or saved a memory from how to use a tool while I was experimenting with the toll and silently apply it breaking my workflow.

I can't remember a single instance where it was helpful so I just disabled it to not have to deal with yet another cognitive overload.