I run mostly on a treadmill. I love to run outside, but I don't live in a place that I can run without getting run over, unless I do it before daylight. And I don't think that is very safe where I am.
I think it is a lot easier to run outside, too. I know some people say it is easier to run on a treadmill. But I think the opposite. I would LOVE to have somewhere safe and nice to run outside!! When we go on vacation I make it a point to run outside.
Linda