So I started with the AGA T2, then moved on to the Z-Atty U. I have my AGA vaping really nice, but I have noticed how much cleaner and more enjoyable the Z-Atty is on the toot, imo. Have others noticed the same? The build quality is significantly better with my Zen, obviously; yet I am curious if this is the reason for such a significant difference. This is just what I have noticed, do others agree? Similar experiences?