I have them on my rear axle, they work fine when they are warmed up.
I find them noisy with cold weather, i will replace them soon with Bilstein’s.
If you have the time you can get mine for free, i will send them to you.
I don't know how to tell if they're good quality,but they look ok in the box & we've had them on our TA for about 30K without problems & still working better than the originals ever did(better ride quality).
I seem to remember I had some confusion about the description,something about they where labelled MK3 but they where for the Mark4,which I was informed the 2012+ is.
Hope this helps.