Lock Screen Application

[Zero Serenity]

I've been using Awesome Lock since the days of Windows Phone 8.0, but lately it feel like it hasn't been updated and is rather flimsy to work with. With the most recent update to Windows 10 (Mobile) the audio controls now blend into Awesome Lock. So it reignited the question I keep forgetting to ask the community:

What lock screen application do you use and can you sell me on it?

Cheers.