i have tried the mobius. bought it as a gift for xmas. the mobius sound is still in-your-head stereo like atmos with the difference being the sound moves with your head. this is useful in gaming but a total negative in music or video. but realistically who moves their head that much where it would be needed? i dont game so i dont really know but to me it is gimmicky. as for the sound its fine. but its closed back which i do not prefer. it obviously does not even come close to high end audezes but for a mid-range headset it is good. SXFI is a completely different out-of-your-head effect so to me mobius and SXFI are entirely different categories and are not really comparable.