The comfortable style apps again to close it did not exist on Android 2.3.x and therefore the Advanced Task Manager Pro was very important in the daily routine. One can save a lot of battery power when you set the Auto Kill level, ie the "rigor" of Appschließungen on high, because then everything is closed in a definable cycle and thus protects the battery. (Helps course not, if you look all the 30s on your mobile phone because the screen of my Samsung Galaxy S1 used is negligible at least 95% of the power on the device.)
If you have Android version 4.xx you need the task manager in my opinion no longer really, since one via lateral. Wipe the apps can easily close. But all in all a very useful and user-friendly app.