The Golf (IMO) is a jack of all trades, happy as a fast A-B car, as in a car park full of high end motors, the Grrrrrr sound that you seem to love, ruined the car in my eyes.
Seriously, after a long drive I felt ill, the Cabin comfort was so compromised. I cannot imagine doing any kind of serious mileage with them. It reminded me of test flying a badly vibrating Helicopter. I am happy with my OEM upper mounts allied with a uprated lower mount.
The GRRRRR sound is totally alien to a Golf Gti, as is the much complained about Drone that some exhausts are prone to.
Just my opinion, having fitted some mounts. And it is all in my Open and honest review.
....Absolutely understood, Dave, and also respected 
- We all have different preferences and views about what our GTI's should be. My preference is more akin to Mat's.
You've said you didn't like the Grrrrr but you also mention vibration (helicopter comparison) - Did you experience much vibration as well when you had the BSH mounts installed?
I'm curious and not expecting the VWR and BSH mounts to differ very much from each other regarding either Grrrr or vibration.
The vibration (sound - is a vibe) was (Swear word is appropriate here) awful, really noticeable, akin to the drone of a poor exhaust, it would fill the cabin with an awful feeling. Not for me. I hated driving the car.
As soon as I refitted the std mounts back, it was bliss, and so much better. My car is not a track car, it has lights, a radio and number-plates, and as such needs to be a jack of all trades.
Many years ago, I had a 205 Gti (1.9 variant) and fitted a full Magnex exhaust to it, it absolutely flew, but the noise became tiring (as anything that is above one's comfort threshold will become). I also had a Black lab, he hated the noise, so much so he was physically sick after 1/2 hour in the car (*not my driving) the noise had got to him.
If you car is a track orientated car, why not remove all carpets, and accentuate the Grrrrrr sound even more - genuine question.
IMHO.
