Whether or not these are better than their vanilla counterparts is up to you to decide - his idea of a "fixed" style may not be the same as yours. He merely wishes you enjoy playing using this mod.
OVERVIEW
Brawler
Kick combos extended, Heat Actions changed to better fit the brawling theme.
Boxing
Added kick combos so as to not leave it completely useless in that field,
also shortened punch combos to only 5 hits maximum because I believe 10
hits are unnecessary.
Karate
Slightly faster combos.
Muay Thai
Made to resemble traditional Muay Thai more; punch and kick combos both
extended by 1 hit each. Heat Actions changed to fit this theme.
Wrestling
Mostly just Kurohyou 1 Wrestling, which was much better than 2's horrible
Wrestling anyway. Also with different Blue and Red Heat.
Lucha Libre
Fixed the terrible high punch and kick combos, front punch and kick are also no longer useless and Blue Heat has been changed.
Sumo
There is simply no actually fixing this style until attributes can be
altered, but I have made the punch combos slightly more useful and added
actual kick combos anyway.
MMA
No longer a lame, slow style; actual good high and low punch combos have been added, terribly
short high kick combo has been lengthened and Heat Actions have been
changed.
Military Martial Arts
Now made to resemble Commando Sambo instead of whatever substandard garbage it used to be.
Also incorporates moves from Tsuyoshi Aramaki.
Jiu Jitsu
Since this is a grappling based style at its core, only the combos have been
changed to be slightly more useful. Heat Actions also swapped for more
intense ones.
Koryu
Lengthened all combos and changed Blue Heat, not much else.
Pankration
I MADE IT GOOD!!!!!! PLAY AND SEE I'M NOT LYING I PROMISE!!!!!!
Chinese Martial Arts
Now more similar to Kurohyou 1 CMA, incorporating more stylish and difficult moves.
Extreme Fortitude
Changed Heat Actions, nothing else.
Extreme Instant Death
Drastically changed all kicks to resemble Taido more.
Extreme Wild Dance
Shortened from 20 hits to its original 10 hits because 20 hits is frankly ridiculous and unneeded.
Extreme God Leg
Removed all punches and replaced with kicks.
Extreme God Hand
Removed all kicks and replaced with punches.
Extreme Awakening
Transformed into a crazy, unhinged style with long combos and brutal Heat Actions. Allows even greater combo looping now.
Extreme Man
Changed one Heat Action.
Extreme Man - Taizan
Exactly the same as boss Taizan.
Extreme Man - Shinjo
Changed a few moves since their hitboxes don't work properly in 2, also restored boss Reiji's Blue Heat.
Brawler - Tenma
Remains completely unchanged.