I have this placement. I think saturn grounds my moon. I mean, compared to my mother whose aries moon is in the 1st house and receives no restriction, I'm very mellow. I can relate a fair bit with the general aries moon's traits. Saturn often manifests as circumstances that force me to keep a reign on my selef-expression.
Aries moon wants a playground, but unless saturn's demands are satisfied, there won't be time (or chance) to play.