it's not the parkour, it's the public environment. i enjoy the parkour itself, and the group is good, but as a learning environment at least this group is kinda poopy for someone like me, partially because i consider my own training to be something extremely private (i can learn to tune out outside influences though, but it's annoying) and because i learn better when i have constant supervision. i get by though, and it's really fun and a really good workout, so the pros outweight the cons, although i've had a couple of lackluster sessions.