He was indeed, however he said:
I don't particularly like Hartley on a personal level, however that can be said for most of the Aberdeen first team, the management team, the board, the tea lady...
All that matters to me is if the team with Hartley in it is better than a team without him, and it would be better, so he's a decent enough signing for me. Not a long term solution, but would be happy to see him here next season.
Good beard too.