Watched him against Bournemouth in March. I thought he looked a bit out of position at left back, uneasy when Feeney, a nippy winger, ran at him. Had a look at a Notts County forum, and their impression is that centre half is his best position. Some thought that he was their weak link in defence at left back, where his distribution is poor. He had a spell at centre half where he did well, but they don't think he's better than their first choice pairing.
Maybe he's worth picking up as a utility player in defence, but I doubt that he'll solve our left back problem.