Ok, seeing those latest pics in this thread I can now specify exactly what I don't like about the lip spoiler.
The pic of it from above looks good actually. It's how the material of the spoiler goes so far down the trunklid that I find completely unattractive. It actually looks cheap to me. If the spoiler just sat on top of the edge of the trunklid (like most spoilers) it would look MUCH better.