Thank you Danny, very good news. This confirms it for the Nexus 4 then. I hope to hear from at least one Nexus 5 user and others with non-Nexus lollipop, because I made this alternative unlock for all devices on Lollipop. I wouldn't want to break it for anybody.
In the new v1.04beta2 version I made this setting switchable on non-lollipop devices (except Samsungs). I try to minimize the number of switches to keep the app simple, so this option is hidden for lollipop users (it's automatically turned on) and for Samsung users because I have enough Samsung devices to test it (there it's turned off).
If you are using pre-lollipop and unlock doesn't work for you you can try this switch: "Unlock workaround":
I need your feedback, thank you!