Ahhhhh thats interesting, thats one of the models i was looking at!! how much did you pay for it? and hows the performance compared with the oem system? can you post a pickie of it in the car??
Here you go bud, pic of the unit installed, chavtastic background image is optional
I paid £465 for the work, not sure how much of that was headunit, adapter for steering controls, fascia panel, iPhone cable and labour - but that was about a year ago now, I bet you could get the headunit on its own for about £250-£300
Performance is hard for me to say as I only had the OEM for about a fortnight before ripping it out, couldn't live with no iPhone connection for my music or lack of bluetooth. Also, shortly after I replaced the headunit I also had the amp, sub, front and rear speakers replaced. So I couldn't say how much was just down to the headunit, but for me to have done the extra work so quickly afterward I can't have been that happy with the sound (the functionality was a massive step up though, I can say that).
As a general rule of thumb in audio, your system is only as good as your weakest component, so if you just did the headunit I would expect an improvement, but not massive as the bose amp, sub and speakers will still be holding you back. Also when you spend money on audio you WANT it to sound better so generally you convince yourself it does
In terms of the whole setup versus OEM, I can promise you it's night and day, but the Hertz amp and speakers are a huge factor in that.
Thanks buddy
Great taste in music