You understand how that springs are set so that they are soft for the first part of their travel, and get progressively tougher the more they are compressed? This is to improve ride comfort. Now, if you put lowering blocks on, then you don't get tough spring resistance until you've already hit the bump stops, so it makes the car look good and handle not much better, trust me when I say, if you go hard around a corner, hit a pothole, and the suspension hits the bumpstops, the car will exit stage left into an oncoming telegraph pole...
This is not from personal experience, but I know of others who've shared this fate.

The idea is to lower the centre of gravity, without stuffing up the roll centre. This is a complex topic. Using reverse eyed, and tougher set of springs, keeps the progressive nature of the springs. But the REAL benefit is only found with good quality shock absorbers. Lowering the car 1-2 inches is fine, and get the best shocks you can get your hands on. Good tires also make a huge difference. On my first Datto, I splashed out on a new set of P600 Pirellis, and the difference was HUGE.

So there you go, this is the end of my Christmas morning spiel.

Merry Christmas to all. And Happy Holidays for people who believe otherwise.