If something or someone 'makes it' for you (in this context) it means they or it made the experience special or good for you. The 'it' refers to the experience. You are emphasising that that person or thing was the best thing about the experience. Similarly if the restaurant review was positive, this person is saying "The food did it for me" = above everything else, the food is what made the experience so great for me. However if it was negative the person may have listed all of the bad things about the experience but then ended it with "it was the food that did it for me" = the food was the worst thing, the 'last straw' to quote another English idiom!

In this context "made it" = "made the experience good for me" "do it for me" = "this is something I get really excited about." Also, sometimes people use "do it for me" to express opinions about women/men they find attractive. For example: "Blonde women do it for me" = I like blonde women. "Tall men do it for me" = I am attracted to tall men. People sometimes use it when talking about food now. For example: "That hot sauce really does it for me." "The way that they melt the cheese does it for me."