He's good. Comfortable on the ball, decent speed, better passer than most our CB's and solid defensively. He had a good game against City recently. I think he would fit in very well in Motta's setup.
I know being in the Eredivisie at his age is a bit of a red flag, but he literally just turned 27 this week. He has been consistently solid for Feyenoord, who paid a relatively high sum for him at the time to Sparta Prague 3 years ago. He was close to joining Atletico Madrid in the summer, but Feyenoord's demands were deemed to high in the end. That said, 35-40m is a bit steep. But you do need to overpay in January if you want quality.