We have no complete midfielders and he is pretty much it. Not elite in anything, but neither are Bruno G or Tonali. Éderson's stats are actually better in almost everything than Tonali's in Serie A before his move to Newcastle, and Tonali turned out decent. It would be nice to have a midfield metronome, but first, we need actual physicality, energy and athleticism in midfield, and Éderson provides that, in addition to being a decent progressive passer, something Ugarte isn't. With two number 10s and wing backs, Bruno can drop deep to collect the ball to progress the ball, we don't really need him to play next to Ugarte, especially because we're almost always losing the midfield battles in terms of physicality. Dominated by mediocre teams because of it isn't acceptable, and with Éderson coming in, I think we would be much better in midfield. If you have seen him play, you'll know he has no problems translating the strength and physicality bit to Premier League, and he has already shown he can do it against Liverpool in the CL. He is ridiculously strong.