+1
I upgraded to Alfred 3 on my MacBook Air running El Capitan – the Caffeinate workflow is still working fine.
However, yesterday I did a clean install of my Mac mini – also El Capitan and Alfred 3 – and the Caffeinate workflow doesn't work at all. It doesn't even remember the settings I specify under "Configure Caffeinate Control".
Maybe the developer could chime in? It has barely been 24h and I already miss the ease of use of the workflow and had to revert back to a menu bar app… :-/