This level is now the ideal level, adopt HDMI 1.4 now guaranteed use in the future the number of buyers for cable. Also, after multiple tests in audio and video, the qualitative contribution of 1.4 is convincing compared to 1.3 even if it is enough in theory. This is the direct result of larger conductors and superior shielding.
For quality home theater installations the cable probably will not be enough. By cons it is ideal in IT and classic furniture home theater.