ATK Works very well, 2 of my friends have the HTC Eris, and they were constantly downloading apps, their phones were getting really slow. I added ATK for them, and Cleared their tasks, now they're happy, the phone is as fast as when they took it out of the box. They hadn't realized how much was really running in background, and did not know this was an option for them. It would've been nice if the instuction manuals gave suggested applications for downloads, however if you have a good sales rep, they'll show you the right ones to download like mine did. I love ATK.