I have Gaz coilovers (not gold) on my 4x4 and in my opinion the car feels awful. it is as said too soft or too hard and found it difficult to find anywhere in between.

the car fees a little wallowy (spell check) at times and the car just feels uncertain, it is the second car i have bought with Gaz already fitted. My Mk6 RS2K also had the same issues albeit that i wasnt running over 300 bhp. To me it still had the same noticeable characteristics.

in my opinion and in my experience Gaz are not for me, when you lower them too much the characteristics of the spring change and it really does affect the feedback to the driver

just my thoughts