also is it good for 2d fighters?
The 360 one? Yeah, it works perfectly with ggpo.
what about the ps3 one?
The Xbox 360 Soul Calibur IV stick is a repackaged version of the Hori Fighting Stick EX2, the Dead Or Alive 4 stick, the Virtua Fighter 5 stick, and the Live Arena (VF5 Japan) stick.
The PlayStation 3 Soul Calibur IV stick is a repackaged version of the Hori Fighting Stick 3.
They will both work on PC, but I think you miiight need to download drivers for one or both of the two. This is hardly an inconvenience so don’t let that affect your decision. Search for the sticks’ alternate names on here and you should be able to find plenty of info on that. 
just received it
im having trouble doing fb’s/dp’s consistently, can someone give me tips?
practice
put in a quality joystick.
so as far as compatibility.
the DOA 4 (360) will work with a driver
fighting stick EX 2 (360) will work with a driver not work with a mac (trust me this is my case)
FS3 (ps3) will work in some pcs.
is the SCIV (360) stick compatible with mac?
fixed
fbs i can understand but dp should be easier
for DPs try forward, downback, push to downforward, like forward > corner > corner
for fbs take extra effort to actually hit the forward direction, whats probably happening is that youre doing down, downforward,…downforward some more because youre getting stuck in the corner.
ya i havta really press the corners to get them out, havta get use to that
Square gate gave me problems at first, but it shined truly when I used it for Boxer [ST].
And good looks on this thread MJ. Thanks to this I picked up an EX2 about two days after you made this.