I've tried calisthenics and lacks in many areas. For starters, it woefully neglects the legs. Pistol squats and bridges are not nearly as taxing as barbell squats and deadlifts, though bridges have the added benefit of working flexibility. Push ups and pull ups quickly reach a plateau with 1 arm variations, and at that point you're no longer doing calisthenic movements but training like a gymnast.
Calisthenics seem to be most effective at building strength for the core (pikes, leg raises, planks) and the shoulders (if you have the coordination to do hand stand push ups).
Barbell training should not be avoided. I've also had serious injuries, such as a broken humerus as a child, where rotator cuff and deltoid muscles atrophied to an extreme level; and those joints are now stronger than ever because I weight trained in specific movement patterns that are difficult to replicate with calisthenics. And I say this as someone who has also been lifting weights for over a decade and has competed in both powerlifting and bodybuilding.