Editing - After Effects

Now that the movie is all together, i have used After Effects to add my idents & basic titles to the movie to create a rough cut, although i have still not edited the sound in anyway. I have not used After Effects much for editing, which i was i aimed to do, as when exporting, my video often comes out in much worse quality than from Premiere, and i wanted to keep the quality as high as i could; also the level of editing & the quality of effects are not as good on After Effects, as it is more aimed at CGI etc.