TLDR; If you are a fan of Justin McDonald's original book series, JSA: The World, and looking for a crossword puzzle game, then don’t waste your time, download JSA: The Word Puzzle on your Android device, see how well you know the characters from JSA: The World and how good you are at solving such crossword puzzles.
JSA: The Word Puzzle is yet another new puzzle game available for Android phones and tablets, and while the gameplay and concept are similar to other crossword puzzle games, it focuses on “highlight[ing] the many attributes of unforgettable characters from JSA: The World”. If you are not familiar with heroes and villains of this popular book, you may find it super difficult to solve the puzzles. But, on the other side, if you enjoy reading the Justin McDonald book and like challenging your general knowledge about the book, JSA: The Word Puzzle can become your favorite crossword puzzle game.
My personal experience: Aside from the fact that you should be a fan of Joined Services Agency book to enjoy available levels and puzzles, I didn’t see any lag while connecting the letters and there is nothing to complain about when it comes to interface, gameplay, graphics, and animations. The available ads are not annoying at all and won’t make you distracted.