The errata mostly looks pretty good, but I do have a few quibbles with it (shocking!).
The Tempest and Battlerager fixes look spot on. The two feats for BRV were a double nerf (the +1 now only triggers once versus twice in the old rules) so that was probably over the line - but the other changes look good.
At this point I think a two weapon talent fighter is good if you want to be high damage - a sword and board Battlerager is better if you want to be 'the tank'.
RRoT is probably still too powerfull. At 4th Level with a +2 Vicious Executioner's Axe you are looking at +3d12 damage on a hit - effectively a feat that provides a +20 damage bonus once per encounter. Slaying action on a Brutal Scoundrel Rogue provides +15/16 and is more restrictive in its use.
At paragon and epic levels the gulf increases dramatically - +3 Axe at level paragon is now doing +33 damage (the slaying action is at +20 or so).
By epic the +5 Axe is now dealing +52 damage - pretty good for a once per encounter feat (slaying action is well behind at this point - +25/26).
The suggestion of 18-20 crit range was likely better then this version.
The RoB change looks good - still a very nice power to have, but no longer a no brainer.
The Guileful Switch was poorly done - at least from initial reading. Keeping the power as is but changing it to a Daily would have been much more appropriate. At this point, it is so situationally useful, that it is much less likely to see play at all. A party tends to use the Delay funciton to muck with initiative order as needed - wasting a Level 6 power slot to do so is just not something that needs to be done every encounter.
So Battlerager and Dual strike were very good - the feats were a bit of an over nerf.
RRoT was undernerfed - it still needs errata.
GS was over nerfed - it is now too situationaly useful to be a level 6 power - level 2 maybe - would prefer the old version as a Daily.
The Tempest and Battlerager fixes look spot on. The two feats for BRV were a double nerf (the +1 now only triggers once versus twice in the old rules) so that was probably over the line - but the other changes look good.
At this point I think a two weapon talent fighter is good if you want to be high damage - a sword and board Battlerager is better if you want to be 'the tank'.
RRoT is probably still too powerfull. At 4th Level with a +2 Vicious Executioner's Axe you are looking at +3d12 damage on a hit - effectively a feat that provides a +20 damage bonus once per encounter. Slaying action on a Brutal Scoundrel Rogue provides +15/16 and is more restrictive in its use.
At paragon and epic levels the gulf increases dramatically - +3 Axe at level paragon is now doing +33 damage (the slaying action is at +20 or so).
By epic the +5 Axe is now dealing +52 damage - pretty good for a once per encounter feat (slaying action is well behind at this point - +25/26).
The suggestion of 18-20 crit range was likely better then this version.
The RoB change looks good - still a very nice power to have, but no longer a no brainer.
The Guileful Switch was poorly done - at least from initial reading. Keeping the power as is but changing it to a Daily would have been much more appropriate. At this point, it is so situationally useful, that it is much less likely to see play at all. A party tends to use the Delay funciton to muck with initiative order as needed - wasting a Level 6 power slot to do so is just not something that needs to be done every encounter.
So Battlerager and Dual strike were very good - the feats were a bit of an over nerf.
RRoT was undernerfed - it still needs errata.
GS was over nerfed - it is now too situationaly useful to be a level 6 power - level 2 maybe - would prefer the old version as a Daily.