I'm loving this mod so far.
A couple of things I haven't seen mentioned that may be just me, but could be useful to know.
1: The path camera sets at the level of the player's feet, not their head. I've been getting around this by using invisible blocks or jetting at points where I'm setting a knot.
2: After I create the path, /pathCamStart works fine the first time. If I try to replay it again afterward, though, it starts to play while the "pathcam starting in..." countdown is going, and when the countdown ends, it goes back to the origin and I have to use /pathCamGo. It looks like there's a camera reset at the end of that countdown that needs to go away after the first flythrough.