I installed several of the Kwikset units and really don’t care for them at all - and had issues with them in general. It was bad enough that I swapped 3 units for Yale’s on a job and never looked back. Customers like them much better too. Now Kwikset seemed to have a newer model at Cedia that looked much better but not sure if that one is shipiping C4 model or not. I’ve had more than one locksmith tell me the Kwiksets are very easy to break into as well. I just use the keyless Yales.