I have VF Engineering engine mount (upper mount and lower torque arm) on my A3 for one year (about 20 000 km).
At first, I was a bit disturbed by increased noise and vibrations and didn't know if I would keep them.
Even more because, stock my car was very quiet.
But after a few km they break in and I get used to them and then just enjoyed the best.
The car feels stiffer.
The steering is more responsive.
There is more feedback in the steeringwheel, or rather a better feeling of the front axle.
The car feels sharper, more alive.
Braking and acceleration are also more direct.
The engine noise is sportier.
And now, I don't notice the increased noise anymore , even during very long trip (1100km one way) But know when I'm riding at 200km/h on the highway I don't get bored any more.
I have the feeling I'm driving a car at 200km/h, and not being sit in an armchair listening to a sweet music watching cars going backwards.