Bunn has done well. I don't think by any stretch he'll be our number 1 down the line. There's a bit of a Michael Oakes vibe about him. In that he's probably a Premiership number 2 or 3, but he'll be solid enough to fill in, but if it becomes long term you'll see the limitations come to the fore.
But fair play to him, he's done well so far. Hope he keeps it up. If we struggle to sign a decent stopper, there's no reason why he couldn't be our number 1 in the Championship. Long term in the Premiership? I'm not sure. Despite his age, to some extent he's still inexperienced at higher levels. 31 years old and about 160 league games (around half of which were league one level almost a decade ago).