Comply tips are certainly comfy and isolate well. My complaints with them have been: two-handed insertion, reduced treble, they get dirty and have a limited life. Cleaning them with hydrogen peroxide extends their life by a few weeks. I actually like the SQ better when I put them on backwards, and others have suggested trimming the foam past the tube to get the same result.
PM me if you'd like a few more T-400's at a reduced price.