I have not heard Motordyne so can compare. With that said, I am very happy with my setup which is Berk HFC, nismo stock mid-section and Meisterschaft axle-back.
This clip is quite accurate although in normal driving there is more burble and pop:
https://www.youtube.com/watch?v=LfpXb1YiLsY
Also, I recently did an HPDE at the Mid-Ohio track and the sound got LOTS of positive attention from others there. It was a really fun weekend hosted by the Northern Ohio Porsche Club. Lots of beautiful cars!