410 games at a 50% win percentage. There's a bunch of championship seasons in there, but also taking hearts to 3rd a couple of times and winning a cup. Other championship managers have been touted on here, so I don't see why that should be a blocker.
Put his exact experience and stats on a foreign manager, and we'd be hailing it as a great appointment. Any experienced manager is going to split opinion, because you don't go 10 years in management without ups and downs.
Like I said, I don't want him because I've never really liked him, maybe that's because I don't like hearts. But the argument that he isn't good enough is silly.
Most of us want an exciting manager from outside of Scotland because it's something new, and there's the chance we find a diamond in the rough. Bringing in someone with considerable experience makes that less likely, so it's boring.