He's not good enough for a team like Spurs, even as a rotation piece. And he ain't a kid...turning 27 this year...so not like he's got plenty time to improve.
Before this season he'd done nothing of note. Was an average player in Holland (where he never played a full season) and last year he was in Serie B.
Yeah he's scored a few goals this season, but that's about it. He's slow, not uber creative, wasteful in possession, not that robust...
Juve/Inter are welcome to him.
Rave review then.