He's good and could become very good.
I'm not sure we even *need* a CM though.
If we get CBs in, we'd still midfield options of Fabinho/Hendo/Thiago/Jones/Keita/AOC/Shaq.
We'll miss Gini though, Keita is injury prone, AOC's form is erratic. Some might leave in summer.
If both Gini and Keita leave, probably will need to look for that kinda player though.