Hmmmmm.... Walked this with the family last weekend, it is an easy trail, the caves are really indentations - so don't get your expectations too high. Lots of people and there is was a HUGE bee hive right where the cave is at the top, keeping you from more than a cursory stop there if you have kids because it will freak them out.
Nice view of the city. Too rock to run this without endangering your ankles. The reason it gets 4 stars so much is that it is very close to the East side of town so you can get to it quickly and I think they are comparing it to hiking in town itself. And people who have lived here all their lives have memories of being here with family and friends. It costs money to park.
If you have kids this is the perfect length. Maybe that is why so many people love it.