What year car do you have? Do you have the sub amps in the door or the later style just above the steering column. I have a shaker 500 system with the later build in a 2011 and installed the shelby (kicker ) door subs and they are quite the upgrade to the stock OEM junk.
I have to agree with your assessment of the sub bezels though, but for me its not a deal breaker.
I've got a 2010, with the amps in the dash. My issue with the setup was mainly that Shelby advertised them as a drop in, plug and play solution. As far as I'm concerned, they're not. You really need an external amp.