Well, I personally think the timers are trying to solve the wrong problem. Nissan should be implementing a system that "doesn't charge" during certain periods instead - that is, "blackout periods" instead of "charging periods". After all, when I plug in the car, I expect it to charge. That's what I expect when I plug my car in, and I have to invert that logic to apply it to LEAF's timers. The timers are designed such that "when I plug it in, I expect it NOT to charge unless I told it to". That's backwards.
I don't have any typical routine every day. I work as an independent contractor at a PC repair shop, and I do on-site work with my LEAF - also my only car. So whenever I happen to get home and plug in, if it's not peak (or partial peak) times, I want it to charge. Sometimes (like right this minute), I don't mind if it's charging during partial peak hours (but would still like it to end at 80% if I don't use it). There actually isn't enough flexibility in the LEAF timers right now to accomplish this task. Since I can't stop it via web/mobile if I started it via web/mobile, those methods would crash all the way through to 100%, leaving me without regen for most of my usual trip.
Now, since the peak periods changed on May 1 (yesterday), I have to reprogram my LEAF's timers. I tried figuring those periods out and how they invert to apply to LEAF's timers (without sketching out a timeline on paper and marking it out visually). Even with start and end times, I couldn't seem to make it work with just 2 timer slots. So to hear that Nissan took a step backwards with 2013 seems like a hugely stupid decision.
Don't mean to hijack this, but this is why I'm frustrated by people saying that the LEAF's timers are adequate. Taking away charging timer functionality is just ridiculous. That should be standard just for the fact that an EV should *always* be avoiding charging during peak hours. And to do that, you need a level of charging timer functionality that can do that.