I've been running single speed(SS) system on my commuter cyclocross for a while, but I always thought SS was limiting CX bike's ability to go anywhere. I like to ride in rough trails and I also like to go fast with traffic when I'm riding back home.
So I decided to try the popular 1x system.
FYI, I've been using Sram Rival levers as brake levers so no changes there.
I've been running this system for a while now and all I can say is that this setup fits near perfect for the purpose of my riding style.
Have a great ride.