read the oni q&a thread 8th and 9th pages to see what i think onis poke game is like, we got a lot of ppl that think onis normals are insufficient for this version. then read the dealing with onis punishability thread for some match up specifics i might add more later if the thread starter wants more.
btw his dp fadc back isnt safe. point blank fadc back he is 4 mini boxes away and -8, he can be full ultra or super punished by err body in the game(his backdash is bad). if not ultra or super then most chars have a normal that can reach and punish. unlike other shotos with longer horizontal range to their dp(they can cancel out from farther) and with better backdashes(they travel farther) onis is pretty vertical so your gonna have to throw it super close.
his electric fireball recovery being buffed is moot, its wasnt the recovery that got you punished it was the startup that made it super easy to jump on reaction, though it made good anti air ex dp bait if you could space the light one out. the range you wanna throw it from is pretty much the same as before 3/4 to full screen.
his air dash can be ultrad or superd on reaction because of the recovery frames on landing. if the opponent knows the matchup once he sees you air dashing hell start anti airing it with light dp or something and you can get ultrad. the air dash tatsu has to be timed extremely late to hit crouching or small hitbox opponents, though this timing gets blown up by reversal dps. to beat the reversal dp you wanna do it early, however this timing wiffs if the opponent just crouch blocks or low profiles, leaving you -10 on landing or something stupid like that. i think its punishable on block too. his air dash does offer a good air to air where his air normal normally wouldnt cut it, and if you have super stocked you have some air dominance. it can also screw over anti air ultras like hakkans u2. overall a gimick with limited uses.
his far normals are good in the matchups where you can punish with them, as far as poking goes they are major focus bait(you can cancel super off of them if you have it). oni in general is abused by ppl with good focuses in the midrange(actually he gets abused in the midrange in general) because his crouch med kick into fireball can be focused for a crumple(both after the mk and after the fireball because the hit stun on the mk is bad), and he doesnt have a good midrange focus breaker.
most matchups devolve into oni trying to focus forward in on the opponents normals to get close and trying to punish unsafely spaced specials. there are some matchups where oni is actually allowed to press buttons to stuff out the opponents pokes but there arent that many. youll be doing a lot of walk up block, walk up block, walk up block.
-edit
to answer your last question, it depends on your connection and how laggy your games are. to play oni patiently and solid you NEEEED to have your character specific punishes down. most of these punishes are rather tight, and due to the hitstun on his cancellable moves being shit, youd better have a good connection to cancel off one of his normals during footsies into a fadc combo. because onis playstyle revolves around punishing big with meter, you get like 1-2 chances a round maybe to do your damage, if the lag spiked during the combo or you just plain cant punish due to lag, your gonna hate this guy. if your connection is good and you play only good green bars your good to go.
if your connections is shaky, go to a character that doesnt need meter and combos to win. charge characters with their great normals and pretty easy combos thrive in the online environment. characters that control space with their normals do excellent, rose and fei come to mind, if you wanna play patient. in fact when i dont feel like having to deal with the online shenanigans of dp mashers and jump back jump forward bullshitters i switch to rose or guile or fei, i might not know the matchups as well as with oni and get wrecked by ppl that do, but at least i dont get scrubbed out by stupid online shit.
