I love my coffee sweet and cold brew focused. When people say use milk instead of water they are VERY correct. it provided a very "milk shake" like vibe and while it does take a teeeeny bit more time to mix its still very much worth it. Makes me want to use milk for all of the other flavors I'm trying in the future. The flavors of coffee and vanilla are perfectly balanced when you do it like this.
DO be careful of your sugar intake.