I hope you got a 50% discount on this..... which is what I would consider "significant"
I am not about to dump $4K or even $2K on a system so that my car would just sound better without any performance gains.....
Overall thumbs up to BMW for releasing a OEM system but there are much better alternatives out there.
Retired: 2011 E92 M3 AW w/ Silver Novillo ZCP, ZTP, ZPP, 494, 6FL, 507, 302 & 415.....ED April 29th, 2010
Retired: 2007 E92 335i -Space Gray, Black Leatherette + Alum, Nav, ZCW, ZSP, PDC, CA & Sunshade.....ED Oct 19th, 2006