From what I read here I don't think this manual will be enough to fix the huge amount of bugs that PF has, that inherited from 3.0 and 3.5.
First problem, uncontrolled bonuses. All game is based on that. Insane spells DC, insane bonus on hit and damage, on TS, and so on. So the best weapon for a barbarian is the elven blade. Really?
My wizard give a DC of 35, your bonus on TS is +10. Oh, you are a barbarian? Spell immunity.
Same for skills. You can reach insane bonuses, meaning you can never be spotted, or stuffs.
Direct dmg spells suck.
Rogue is overnerfed, paladin and inquisitors deal an insane amount of damage and got huge defenses, plus a big array of options.
The warrior got more feats and some little abilities.
Skill points? You can have 2 or 3 per level, someone else 13. Uhm... yeah.
Magic items? A joke.
I played 3.0, 3.5, and PF and I totally loved this games. D&D 4th was a big joke, they tried to bring videogamers on a table and failed hard.
But in the end, PF is not able to represent properly even a single narrative settings, with the exception of Eberron, probably.
With this old rules you can play more a Diablo campaign than a Dragonlance of Forgotten Realms.
I hope the redesign will be huge, because with Numenera and D&D next I think they have not a lot of time to waste.
No rework of paladin? :D
Actually fights in PF last 2 rounds, but take like 1.30 hours in real.
Just some random considerations. Had to house rule PF a lot more than 3.0 and 3.5. More options, more awesome stuffs, but zero balance.