A few members are running them gazz, really good reviews, i was going to buy a set until i got a set of kw variant 2 colies for £250 .
AP's are known for not going low enough on the rear from what I have heard. Not sure if thats true just going from what I have read on forums from members who run them.
The ap's don't go really low at the back but you can remove the adjuster platform and run it with just the rubber mount at the top and a plastic collar available from kw. This is how I ran my tt and many friends cars. There's no issue with the spring being 'loose' and falling out when you jack the car up, it's a tight fit.