Heard nothing but great things on TCKR the company itself and their products for the E46 / E9x platforms
Kale@TCKR is very knowledgeable and was patient with all of my questions at the time in which I was heavily pursuing a set of TCKR S/A coilovers..
Unfortunately at the end of the day I could not find a reasonable way to have them shipped overseas to me so I had to pass and look for something else..
Two thumbs up for TCKR from my own personal experience