Yes, the manga is way better than the poor anime adaptation. That does not, however, make it the masterpiece that many fans claim it is. "Tokyo Ghoul" is an edgy, gory version of your typical shounen that manages to touch on some more mature themes such as mental illness. It is an entertaining summer blockbuster that will hook readers but will never sucessfully execute its plot.

Story: 6
the story is good, especially during the Aogiri arc, but completely falls apart during the final arc (I know there is a sequel but the issues I had with the final arc did not have anything to do with its cliffhanger ending). The beginning of the manga builds towards the infamous Aogiri arc, introducing us to the world of ghouls while also developing our main protagonist Ken Kaneki's inner struggle between human and ghoul. Not original, but interesting enough to keep people reading in the hopes of an epic climax. And "Tokyo Ghoul" delivers-- during the Aogiri arc we see our main protagonist finally succumb to his inner demons, resulting a badass power-up and a dose of sadism that is refreshing in the self-righteous "good boy" Kaneki. Had "Tokyo Ghoul" then crafted a "redemption" arc in which Kaneki, who has now fully embraced his ghoul side, learns to live as both a human and a ghoul (I know it sounds cheesy but its a hell of a lot better than what we actually got), then the manga's story would have been both solid and complete. No mess of a second half that introduces new characters for the sake of it, pointlessly brings characters back to life, and showcases completely illogical decisions for the purpose of plot (I'm looking at you Yoshimura and Hide). No sequel "Re:" where we introduce even more pointless characters instead of finally developing our original protagonists, bring back EVERYONE from the dead, and basically just rely on pulling people's heart strings in an attempt to cover bad writing. Overall, "Tokyo Ghoul" had the potential to be a solid yet unoriginal story, but became a mess after the commendable Aogiri arc.

Art: 8
Not much to say here. The art is very good and improves throughout. Some of the fight scenes are tricky to read but well done overall.

Characters: 6
The main character is interesting but does not get the full character arc he deserves after the Aogiri arc. It feels unfair that his story abruptly comes to a halt and then completely resets for the entire first half of "Re:." It feels as through Usui didn't know how to conclude his story and then just decided to buy time by making an inferior copy of the original that is focused on humans rather than ghouls. Most of the side characters are weak. Tsukiyama, Suzuya, and Hide are the only interesting ones, but they do not get nearly enough screen time or development. Touka is a borderline abusive and decidedly unlikable character. Usui attempts to mend this by providing her with a troubled past and demonstrating her "kindness" by having her eat her friend's human food. Then all of a sudden after emotionally abusing Kaneki for months, she suddenly likes him because "plot." However, Touka's past does not excuse her from being a bitch, and her nonsensically taking kind actions for the sake of plot does not convince the reader that she is a good person. Moreover, she receives little to no development over the course of the entire manga, making her character even more platonic and uninteresting.

Enjoyment: 8
Despite the manga's evident flaws, I very much enjoyed reading "Tokyo Ghoul," especially through the Aoigiri arc before where the story reached its peak. Afterwards, it was entertaining to watch sadistic Kaneki but was less enjoyable since the plot began to fall apart. Certain platonic characters such as Touka also made the plot less enjoyable, especially with the lack of depth in female characters in most anime and manga (Fullmetal Alchemist being the evident exception to this trend).
Overall: 7
"Tokyo Ghoul" is a good summer blockbuster, enjoyable, but lacking brilliant execution of plot and depth to many side characters, of which there are too many.