Got mine fitted yesterday, really plesaed with the results, I forgot to take measurements before but there is an obvious difference, I'd say about an inch at the front and about 15mm at the rear.
Car looks so much more aggressive now, I haven't driven it hard yet to see if the handling is greatly improved but the ride appears unchanged ie no harsher.
My mate who is a mechanic fitted them, as others have said the rears are a breeze, I could have done them but the fronts are a pain in the hole, the shape of the springs dont really suit spring compressors so we ended up lining up the strut with the spring on it then pushing the whole lot up from the bottom using the weight of the car on axle stands to compress the spring, it was a bit hairy but it worked a treat. Will post some picks asap.
Would 100% recommend these. My n/s/r coil was broken but I didn't suffer any of the arb probs others have.