I don't think any active members have these as they have not been heavily advertised. Eibach is the premium brand when it comes to suspension products, so rest assured that they are every bit as competitive as the rest. The only downside is the coils they offer only lower a maximum of 2.2". The good thing is your car will not see additional benefit from going even lower unless you're going full race.
Other than that, the spring rates are nice and will offer a nice ride.
Other than that, the spring rates are nice and will offer a nice ride.