The ever reliable Wikipedia tells me that his record is: 27 wins, 22 draws, 28 losses. Win % = 35.1
Pep Clotet's record was: 12 wins, 10 draws, 14 losses. Win % = 33.3
Appleton's was: 78 wins, 46 draws, 49 losses. Win % 45.1 (which is even more impressive considering how we struggled during his first season)
FWIW I like Robinson's passion although I wish he could keep his emotions in check a little better. I think he gets it wrong tactically quite often and I think his team selection is poor sometimes.
However I think it's important to remember that he's still young (38 according to Wikipedia) and hopefully will continue to learn. He's shown signs of improvement in certain areas of his management and I hope that trend continues.
I'm yet to be convinced he'll ever turn us into a consistent, winning side but I sincerely hope he does because I think he's a decent bloke and genuinely cares about the success of the club.