any issues in 5+ years and I constantly am cranking my stereo up almost to the max to overcome the wind and engine noises. I had Chris custom make me one that finished evenly with the surrounding trim while being tall enough to hide my strut tower bar and mangled strut tower covers where the holes for suspension adjustment and carbing bar were.
I did it for aesthetics not storage but I'm sure you could easily add a lip to the top so you could use it as a shelf.