Swarmkeeper
Hero
I don't think there are many "agreed upon" fixes, there are a couple of more-or-less current threads on a pair of feats that shall not be named that some people see as being broken and others look at as features of the game.
I'm in this camp, too.
The fact that, on a site that is analyzing every nook and cranny of the game, there is no consensus on what needs "fixing" says to me that the game is pretty darn good "as is". The big part of that "as is", of course, is the ability of the DM to make flexible rulings to create a better story and have more fun.
Do yourself a favour and try out the game as-is first, then figure out what YOU would like to change, if anything.
I agree with this sentiment. Let the houserules evolve naturally after giving it a whirl "as is".