I love my Argy because she is the perfect predator. You can attack the target easily,fly away then repeat untill the target die. You can pick up easily lot of dinos and kill them in air. For taming its also one of the best creatures. Pick up the wanted dino and drop it in your taming pen.
Its really nice to have a argy with you. My argy is a full black female.
Getting a massive TLC update in March 2018. The saddle will act as a mobile smithy, Argentavis will be able to carry with Talons as well as with its beak, reduced carry weight on obsidian and a few other unannounced resources (similar to the mammoth and wood), and will also gain a Rapid HP Regen upon eating (likely from devouring corpses and not specifically food from inventory). Like so people can see!