He was part of the greatest Japanese College team in history (which included Ioki, Wada, Yoshida and I believe 4 others that went on to pro ball). Here are some pay service scouting reports.
Michael Street in 2012
The track record of NPB shortstops in MLB hasn’t been a good one, but Takashi Toritani seems ready to reverse that trend. Toritani had been making noise about becoming a free agent after the 2012 season, but he chose to remain with the Hanshin Tigers for another season. In the process, Toritani turned down a two-year deal in favor of a one-year contract, increasing speculation that he will test the waters before the 2014 season. Toritani’s .282 career batting average isn’t all that impressive, but he does have a 10.8 percent walk rate and has flashed more speed than power as he’s aged. Still, his offense and middling defense, as well as the history of Japanese shortstops, make him more likely to catch on in a utility role.
From A scout
"he's patient, he has some plate vision, but I don't see him stinging the ball like he used to. The ball doesn't jump off his bat like it did three or four years ago…and in my opinion his bat speed is falling off a little bit."
Steve Sypa in 2013
Like Nakajima, Toritani is a shortstop by trade. He also has experience at third base, having played there for the majority of his rookie season. As a shortstop, he is the owner of two Mitsui Golden Glove Awards, which he won in 2010 and 2011, and he has a shot at his third for his 2012 season.
As was the case with Nakajima, a lack of data makes it hard to tell if the award was justified or not, but the scouts seem to agree that Toritani is a plus fielder. His already strong arm — believed by some to be the best among contemporary shortstops — is augmented by his speed, allowing him to cover a lot of ground and gun down runners. He does, however, have a tendency to make throwing errors. Like other shortstops coming over from Japan, doubts will always linger about the fielding aspects of the position, regardless of how good or bad the player has been. An NL scout doubts that Toritani will stay at short if he comes to MLB: "I think he's a good player; he's solid…If an MLB team does decide to take him, I don't know if he'll be used as a shortstop. Maybe second base, maybe elsewhere."
From nomprojections (a site which specializes in trying to figure out if how NPB players will convert to MLB)
Both Toritani and Itoi could be moderately valuable players, provided they can stick at shortstop and center field, respectively. I don’t think either will hit as well as Norichika Aoki (Toritani could be pretty close), and Aoki has been a fairly average (~2 win) player in right field. So, if they’re going to provide much value above average, Itoi is going to have to stay in center field, and Toritani is going to have to be able to play shortstop of second base. As far as comparisons to MLB players this year, at short Toritani would likely be similar to a slightly better Yunel Escobar with the bat, but much worse in the field, though it’s unknown by how much. At second, Toritani would pretty much be Daniel Murphy this season, but with less power and more on base skills. If he could field either position well enough, he could be a productive player. Itoi with the bat in center would be something like Jon Jay or Denard Span, which is great if he could field like Span, and not so great if he fielded like Jay.