right now the app seems to override any other apps or your phone settings in screen timeout. for instance, no matter what you have your screen timeout set to in your settings, it will time out after less than 30 seconds. and i have an app called "screen on" which, as you may imagine, keeps the screen on when toggled (it's a toggle widget). however, widget locker overrides this, and times my screen out even when this is on. the dev did say he was going to address the screen timeout issue in the update that is coming this week. i am very hopeful this fixes these issues. the screen timeout is really the only thing keeping me from loving this thing.
another issue, though, is there does not seem to be any way to disable or close the app in a true manner without manually killing it; it will keep showing up even if you think you've disabled it. if you clear the default home, then make sense your home again (or whatever you use), then unclick the enable button at the top of the options, the icon disappears and you might think the app is not running. but if you leave your screen off for a while, it will still come back. your regular sense slide will come up, but after that, widget locker shows up. i had to manually kill it with a task killer. it would be good to be able to disable it without having to do that. like an "exit" or true disable button would be good. it might be just a matter of the dev making it so that if that enable button is not checked, then it dies an actual death. not sure how these things work.