I've got the white Neo for 5 days now..
I have no problem with the silicon pulling away from the chrome bezel. But then again I spend some effort in making sure the silicon is stretch evenly before putting on the H frame.
I had stains in one of the silicon but I am ok with the spare.
Some observation to share:-
The I-frame gets dirty very easily, especially around the edges. It's like when you use a rubber to rub off the pencil mark and your rubber gets all marked.
The entire I-frame itself seems to gone a darker shade compare against the silicon. Lint gets into the gaps around the sleep button, and tiny dirt bits also gets in the gap between the I and H frame..
I'm having also the same concerns with yours horre. The silicon part also on the volume is somewhat stained, probably because of constant use, but the lint on the power/sleep button really ticks me off sometimes. Good thing I have a compressed air gas duster handy.
Is there an issue with the black one with regards to the i-frame? I might swap it if this continues..