I tried some snes emulators out there I could find: BSnes, snes9x, and etc.. And quite honestly, I always come back to ZNES. It might not be so accurate in it emulation, but I've been having much less issues with my games with znes. Especially with stafox and starfox 2. snes9x runs it ridiculously too fast, Bsnes runs it too fast as well, and it doesn't seem to have quite the same kind of slowdown spikes as the snes has. On znes once you properly set the emulation speed, it runs at a pretty accurate rate. My only complaint is that sometimes I'm having input problems. mostly delayed input. And the audio can get "dirty" with white noise static playing over some sounds. And the video recorder is not very accurate and buggy, it doesn't record the memory state, so anything that's calculated randomly won't appear at the same place during the recording, and it can totally ruin everything. But if you set it to full screen with the trilinear filter I think, you can record it live with something like msi afterburner. But besides that I didn't have much issues ever ! The user interface is also getting slightly dated especially the rom browser. But, oh well..
I downloaded and it ran, but what now? It does not come with any games, or tell you how to get more games, so what good is this? At least it was easy to delete.