Running hills is good for me.
Running hills is good for me.
Running hills is good for me.
Running hills is good for me.
Running hills is good for me.
Running hills is good for me.
Running hills is good for me.

Don't mind me...I'm just trying to convince myself that getting my training runs in over lunch which means I have to run more vertically than horizontally is a good thing and I shouldn't shy away from it next time.