Chizuru is strong, but once you learn the match-up and player tendencies, then she's much easier to deal with.
I agree with the JP Tier list placement (Chizuru/Konomi player).
I think it's the A version of her half-circle grab (or B version. Whichever has longer start up) that has a ton of invul on it. My friend has gone through my Sasara super with it before rofl. I don't remember the invul on any of her other grabs.
Tamaki is the 2nd best character in the game. Pair her with the lightning assist for dirty stuff.
You can squeeze more damage out of this by doing 236A, j.C, j.6C, j.2C, stuff after the 6C(2).
It only adds a little bit more damage though haha. I'll see if I can remember the notations for what I was doing.
Have either of you tried setting the stick buttons with something like Joy2Key or Xpadder?
It's been a while since I played BBBR, especially since I can't get it running anymore lol, but I think that's what I did for my TE.
I'll bother my friend to see if he remembers any meter/meterless options Terumi has. I don't think Izayoi can get out without Meter, but I'll check when I get home.