swift reacts beautifully to lowering springs. Cornering is amazing and the braking is so good, you'll sometimes get the feeling that the tyres will stop so suddenly that the body will detach and go forward 
But make sure u have good roads around to travel on. Speed breakers are azaab. But u are slow then. Sometimes, a thick patch of carpeting on the road can launch u in the air. That was my last day with a "stick to the ground" drop (I went into the air at around a 130km/h at around 3am in the night over a "mildly carpeted" patch that I had never even noticed before).
The above lowering was at around 50k kms. I then opted for a 1.5 inch drop at the front, and even that has made a noticeable improvement in braking, cornering and handling, and the control u have if the car goes out of control (it is rare, but the tail does step out sometimes, and with your nose in a proper stance, it is far easier to control things).
Been 105k kms now. No suspension work yet. 10k km checks reveal everything in prime shape.
First rattle noticed at around 80k kms, 3 years of travelling on tattered roads of interior Sindhi included. After lowering I've usually kept to Karachi and Hyderabad only.
Even now, cabin is quiet and there is only an occasional rattle from the shiny brown strip on the door. That's all.
Sent from my GT-I9500
