The art was pretty darned good, and the scripts weren't bad either - ranging from VERY exciting to fairly entertaining. Gibson was one of those writers who was always strong on plot and mood - and with Blackstone, he had the best of all of his fanboy skills in play.
Walter Gibson loved magic. Can't ask for a better protagonist for mysteries starring a magician than Blackstone. - check
Walter Gibson loved mysteries. The guy who created the character we know as The Shadow brings that same strong scripting here.
Walter Gibson loved comics. He may have disparaged them from time to time - the pay sucked mop water, and comics were generally frowned upon, especially from the late 1940s through the 1950s. But he never wrote down to his readers, and always gave us his best.
Whether comics, magic books, magic magazines, or pulp adventures, no one has done it better than Walter Gibson. And the many comics that he wrote of Blackstone were among his best!