I have been using Advanced Task Killer ever since I got my Droid X. I run a rooted phone (only to freeze the Bloat) and Launcher Pro Plus. I keep everything minimalistic. My phone has been smooth as can be imagined and I never complained about battery life.
I have removed Advanced Task Killer just to test things out. These are my results:
Smoothness: Sometimes I get a little bit of lag, noticeable from before. Sometimes there is a slight delay when unlocking the phone. That is only sometimes. For the most of the time it is just as smooth as before.
Battery Life: My phone has been off of the charger for 7 1/2 hours. I have used it as much as I would on any given day, some youtube (minimal), phone calls, random playing with my phone, testing to see if there is an OTA update for gingerbread, etc., AND I am still at 80%.
So far I am happy not running ATK and will continue not running it.
I have removed Advanced Task Killer just to test things out. These are my results:
Smoothness: Sometimes I get a little bit of lag, noticeable from before. Sometimes there is a slight delay when unlocking the phone. That is only sometimes. For the most of the time it is just as smooth as before.
Battery Life: My phone has been off of the charger for 7 1/2 hours. I have used it as much as I would on any given day, some youtube (minimal), phone calls, random playing with my phone, testing to see if there is an OTA update for gingerbread, etc., AND I am still at 80%.
So far I am happy not running ATK and will continue not running it.