Unfortunately it doesn't install ClockWork Mod Recovery.
So either you will have to use the limited stock Recovery or fanny around with Mobile Odin and install the CF-Root kernel anyway. See here
Might be OK if someone cannot connect to Kies or Odin or just needs root but does not want to install ROM's, Kernels, Modems, mod's, etc; I suppose.
For everything else there's always...
Rooting Galaxy S2 - Dummies Guide