Where are you located? You can come out in mine if you want?
The Milltek sounds a lot more OEM, the APR is very quiet inside the car, but it is much louder from the outside of the car! On idle and at a 70mph cruise the APR is quieter than stock.
To be honest, the APR is quite 'distinctive', whereas the Milltek is more 'subtle' sounding - if that makes sense.