Little help with leaf springs

I have not knowing seen them on a car or owned/drove on a set.

Other than various S/S springs used on a Duster, I have used the espo.com 1 inch over bend springs that were excellent. I’d use them again on a driver with power.
Talked to a few and said they were good...got a great deal on them also..how much were the s/s everyone is talking about?? Also got the Bilstein shocks..