KW V3's are legendary and have been for decades. They are one of the top of the line coilover packages, with dampening rates specific to the vehicle they are designed for, progressive spring rates, and independently adjustable compression and rebound (VERY nice for fine-tuning, if you care about really dialing in the suspension.). I installed mine a year ago, and am very happy. It's a coilover that can be adjusted for weekend track days or comfortable highway cruising. They will allow you to drop the car substantially (my car is tucking the front and rear tires, with about a one finger gap F & R), while still maintaining good softness, and staying within the designed range of the dampers.

I have run a lot of modified suspensions over the years: Bilstein sport shocks, Koni adjustables, HOR springs (waaay back in the day), Eibach springs, Bilstein PSS9's, Eibach coilovers, BC racing coilovers, but these were my first KW's. I think they are absolutely on par with the best of the best as far as performance and adjustability, within the range of the $1-3k coilover packages. I've never ridden on something with Stasis, or Ohlins, or the like, so I don't have a good comparison once you get into the remote reservoir level of suspension.

TL;DR: More adjustable shocks than a Koni, with ride height adjustment, and better springs than stock. If you don't care about ride height adjustment, I love Bilstein sports, and think they are one of the best shocks money can buy.