When I first had mine fitted, I was impressed.
There was a little more road noise but for the first time it felt like I could 'feel' what was going on at the front end round bends.
Ride was a touch firmer than S line but felt good.
If they hadn't caused me major probs with knocking at the front (poss a heavy 3.2 V6 issue), I'd still have mine on.
From memory, I think they come with a 2 year warranty, which is good.
Unfortunately, I fall into the category of many that have had issues with JOMS.
If you can squeeze a bit more cash, or save a bit longer, I would spend a bit more on something else.
Just my opinion from my own experience.