While he has around 4 shots per game on average, I would rather have him hitting them from distance compared to Fred or Rashford.
Plays high-risk passing football, which is ok for his position when operating high up the pitch, but can cause some counter-attack against. Can hit long passes which is something we lack among our players and got a functional weaker foot.
His set-piece ability is the main reason as for why we should buy him and is something that should not depend on the league you play in. Not sure if he will get to as many shooting opportunities as he does in Liga Nos or EL, and he will not reach the same amount of goals or assist for us, but is a clear upgrade compared to Pereira, Mata and Lingard.
Would not compare him to Maddison in regards to their ability to handle the ball. Maddison got a softer touch and is much better when moving with the ball.
Don't think him, Rashford and PP would fit into the same team though given the number of shots they take and the number of times our team is actually able to get the ball into good shooting positions without pressure.
Would improve our team, especially on set pieces, but Pelligrini with a £25m release clause (Which Roma are desperate and currently working on removing) would be a better transfer and a better player for our overall play if you exclude set-piece situations. Should be noted that Pellegrini is a good set-piece (Corner and free kicks) as well.