I use it a lot and have gotten a small amount of loosening but not much - which is fine as I don't want it.
I get more loosening if I use it as a leave in. As an adjunct to my conditioner I don't.
As an all night leave in I don't. I guess the next day rinse out helps. But, my hair hardly ever gets weighed down. Finer hair curlies might have a different experience.
I kept seeing jojoba oil at work, so I got some of it to play with. It does seem to leave the curls tighter than the coconout oil. I get better smoothness on the rough spots with coconut though.