I'm disappointed in my replacement assembly. Looking at the comments, it seems that I'm not the only person who's assembly leaks light above the mute rocker and seems less "touchy" than the original screen. Clicking an "a" from the onscreen keyboard, for instance, rarely results in an "a" showing up. You've got to punch at it a few times, which becomes really annoying after only a few sentences.
I've ordered other replacement screens from iFixIt and have been very happy with them in the past. The iPhone 6 replacement assembly isn't quality and I would not recommend purchasing it.