Those are pretty glowing reviews. Good to hear.
This review incorrectly states that this is "the first superhero property starring an African-American lead." I can think of at least one other prime-time TV example, FOX's short-lived (and mostly terrible) M.A.N.T.I.S. from 1994-5, starring Carl Lumbly. Also Blade: The Series, if you count Blade as a superhero. There have been several Power Rangers seasons with black (though not necessarily American) actors in the leading Red Ranger role -- one of whom, Eka Darville, was in Jessica Jones. In animation, we've had Filmation's obscure Superstretch and Microwoman, the '80s syndicated series C.O.P.S. (borderline, since its lead character was voiced by a white actor and was just about the only black character in the very large cast), and by far the best example, Static Shock. And in movies, we've had Steel, Spawn, the Blade trilogy, Catwoman (I know, I know), and the original characters Meteor Man, Blankman, and Hancock.