By that I mean the entry point for most participants are all different, the expectations for most participants are all different, the experience for most participants are all different (some students work harder than others), and the outcomes are all different.
I felt there was more to learn than there was time (I did a 12 week course), so how I felt after graduating was largely a reflection of my own confidence and ability in contrast to the effort I put in and not a direct reflection of the quality of the instruction.
The Dreyfus model of skill acquisition  is a useful reference here. Any program that claims you will gain mastery over a discipline in a dozen weeks is lying to you. The guys that ran my bootcamp were plain about that. They said they would help me help myself learn... which they did but not to the level I really wanted to get to. And that more than anything is why I am ambivalent about recommending them.