Yeah he sounds good.
A lot of piano-driven beats too which is great as they fit Em best. Em always utilizes keyboards when he produces for himself, and it's a staple in his classics, producers always miss it with him.
And if this guy only works with underground etc. - hopefully Em's got annoyed with all the flack about being mainstream / pop now and is going classic with the production values too now.
I'd actually like to hear basically a full album of Em and this guy. Not because I'm so crazy about his beats already but... I hope Em doesn't have about 20 producers again, I know in the past some albums have worked that way but I think it'll just sound incoherent and cluttered again.
I think a handful of guys all with a similar sound, working towards a single vision is what's needed. Em's first three sound so consistent, because of that.