This isn't 5 miles. It's at least 6. My GSP tracker said 6.5.

And I would not call this easy for beginners. The first and last 1.5 miles or so are flat, but that middle few miles is pretty steep for newbs. 1-5 I'd give the whole thing a 3. 1 being totally flat. 2 being slight elevation gain. Nice views. Cool if you don't feel up to hiking Mission Peak.