The art and some of the actions sequences in this manga were really good. I honestly think this art style fits better with the world and storytelling of Attack on Titan that what I've seen of the original manga art style. I especially loved the character design and some of the side stories at the end of each volume. The story telling was nothing especially complex or special but by no means bad. To avoid spoilers, all I'll say is there were some things that tied in with the main story that I thought were well done. Overall, if you're an Attack on Titan fan,I'd definitely recommend even if it's not as great as the main anime/manga itself, but for a typical reader I wouldn't worry about it.