He's certainly different, though still the Hakumen we all know and love to play. Mileage will vary, however.
Compared to EX, I would say top dmg is up, though average dmg is down. Much more about burst dmg than before as opposed to an efficient use of stars to maximize dmg and corner carry. Slightly harder to lands hits due to nerfed options as well, though this is compensated by his dmg. Defence nerfed due to Hotaru and counter changes. No, he's not more flexible than EX. Offence was buffed (especially meter gain) and combo paths are more diverse, however, which may contribute to that idea.
Overall, close game is nerfed, mid/neutral is buffed, and far game is buffed. Correlated to the previous, defence and options are nerfed, and offence buffed. So his buffs are mostly dmg-related and his nerfs are to his options, making him a less flexible character slightly more reliant on capitalizing on the hits he does land.
Fortunately, he has OD, so capitalizing on hits shouldn't be tough, eh?