I use this only for the ability to prevent my MBP from sleeping when I close the lid. With version 2.3.1, it works exactly how it should. I can close the lid, and as long as I keep it closed for at least 30 seconds, when I open it the screen is off and all I need to do is touch the trackpad and instantly the screen is back on.

Using this I can listen to iTunes or download overnight with the screen closed and off. Combined with smcFanControl, I never have any issue with my MBP getting too hot. Great product!