I installed a set of these a week or so ago and have to say I am very impressed and pleased with both the drop, handling and comfort level. Also for those worried about them being "too low", don't be put off, I have easily gotten over some pretty nasty looking speed bumps. Cornering has been noticeably improved, the car does not lean as much as it did on the OEM springs. They are just as comfortable over the majority of surfaces, as you would expect if you do hit a pothole you will feel it but that is the same with all uprated springs.
All in all... very happy I went for these rather than the 25mm springs which (to me) don't really give the appearance I would like.
