Glad I did. I very nearly didn't go for it but I love my music too much.
Just exactly how loud does it get when you floor the throttle? I didn't really get a chance to hear the reverberation during the test drive as he took me on a rural route. It really did sound absolutely immense just gently pulling away from lights etc but how much of that is down to the Symphoser I don't know. I absolutely love the pops/burbles/bangs that come out the exhaust when you give it some revs!