I have never found any mask* that didn't tend to leak at the most inconvenient moment. Even goggles are hard to fit well for me -- it turns out I have a narrow/small face. The junior sized goggles tend to fit really well, and the seal tolerates even grimacing of my face or wrinkling around the eyes which spells sure leakage for masks.
Too bad, because I really like the panoramic view of the masks -- but the leak-proneness is an absolute deal-breaker.
*Except for a scuba/snorkelling type mask which is really huge and tends to seal more around the side of the face.