SSF works great, I'd dare say its nearly on par with how EPSXE emulates Playstation, but the big difference is that SSF requires at least a 2.8 Ghz CPU to get good results, over 3 Ghz recommended, and It pretty much needs a Pentium 4 processor (which are capable of SSE2 Instructions), I heard some people on this board got it working with an AMD chip, but for the most part, everyone else says it only works with Pentium 4 CPUs. If you have a P4 and its real fast, expect to play a vast majority of the games perfectly if not very well.

On my 3.4 Ghz P4, 2D games like SF Alpha 3, MSHVSSF, Power Instict 3, Astra Superstars, and Asuka 120% all run full speed perfect, and 3D games like Radiant Silvergun run about 55 fps or so (fluxuates slightly, with frameskip on it runs extremely well).