It's a cream ale. It will probably be good. I wouldn't use more than 2 oz melanoidin malt. That small amount will give it a strong malt back bone, much more in a simple beer like this could be overpowering. It should be mashed but you will still get some flavor out of it by steeping. I don't use any crystal malts in cream ales. I want them dry.
Everything is better with a beer.