I think he will be a very solid signing.
He is good with the ball in tight spaces, he can drive forward with the ball as well....he is also a very hard worker which we know Pep loves so he will buy into Peps philosophy straight off. He aint a goal scorer but one of the players I love the most (Berarndo Silva) aint a regular goal scorer either. And he seems to have the correct personality as well - which we know is absolutely key to what Pep wants....a winner, doesnt complain, no drama surrounding him etc etc.
Not all signings can be galactico superstars and that doesnt work anyway or not for long due to too many egos.
He is also premiership proven so even though he will take time to adapt to what Pep wants he wont have to adapt to the premiership itself.