Two very fundamental aspects of phenomenal experiences underline the fact that they seem to have "something it's like." One aspect is the fact that experiences have a locus: they Can seem "external" (perceptual), "internal" (interoceptive, bodily or emotional) or "mental." A second fundamental aspect is the imposingness of experiences. They can seem "present" to us in different ways, sometimes...
Doerig et al. evaluate how current empirical theories approach access consciousness, but they neglect how they approach phenomenal consciousness - probably because most theories don't deal with phenomenal consciousness at all. One exception is the sensorimotor theory, but Doerig et al. did not evaluate it as being directed to phenomenal consciousness.