I remember @ChrisUpchurch recommending Arq over Time Machine.
And then I ran across this older post by @tjluoma, and now I want to try Arq to my Time Capsule the next time it craps out and tells me I need to start over with my Time Machine backup.
Time Machine over a network is a mess, using Arq instead - Software - MPU Talk
So, yeah, Carbon Copy Cloner for backups to my direct-connect external drives and Arq for network backups.