Been using it now for several days and don't see a big difference. I think that the android system itself does a decent job of maintaining apps. Unless I'm missing something with this app I don't think it's necessary, at least for me. I also have back up batteries so no big deal to swap a battery when I get low on power. I'm definitely open to hearing how you guys have set the preferences to this app. Maybe I'm not doing something in the set up to get optimum performance.