BW exercises results depend on the initial level of strength/fitness.
for beginners in my school they have tended to be power and muscle builders at first as they can only do low reps but then over a month or three as they get in to the higher rep range of 20-25 they are strictly endurance/fitness and cardio exercises.
I had a student get stuck in the BW rythm, she like the mental zone she got in doing 'rounds' and could do 10-15 w/o even breaking much of a sweat...i kept telling her she needed to change up and add weight via weight vest and/or add weight training...she didn't and was seriously lacking in power and speed after 3.5 years of doing just the BW workout...she had awesome cardio though.
"George never did wake up. And, even all that talking didn't make death any easier...at least not for us. Maybe, in the end, all you can really hope for is that your last thought is a nice one...even if it's just about the taste of a nice cold beer."
"If you find the right balance between desperation and fear you can make people believe anything"
"Is enlightenment even possible? Or, did I drive by it like a missed exit?"
It's simpler than you think.
I could be completely wrong"