This is more than a little self serving, but when I switched us over to intercooler.js it made a huge difference in our app.
When I pulled the trigger on it I was terrified that I was screwing us over by not using Angular (which was the cool tech at the time) or some other more javascript-oriented solution. Thankfully it has worked out well, and my co-founders don't hate me any more than they already did before hand. (And maybe even a bit less.)