As a trail runner, I found Meadowlark to be awesome - a nice variety of shade & sun, not too steep and technically easy. When you get to Plymouth Creek portion, however, this is more of a washout than a trail. huge boulders, giant steep steps. I walked up and down it due to how difficult it is. It's a good workout but pretty unpleasant if you're trying to run. I didn't get through the full 2nd loop but found the early stages (turning left off Plymouth Creek as soon as I could) to be lovely. I will try it again but will have low expectations on speed. It got pretty busy by 8:30a so it's a good morning route.