I will take an S&S any day. Never had one fail and if you find the right supplier they are less expensive. The other thing I like is their physical size is much smaller than Siemens. So mounting them in a tight controller like an LRV or a Vertitron is lot easier, plus the soft start and fault contactor can be separated and mounted on din rail. With Siemens I think in my area we have lost close to 80 in the last 4 years.