Hi big ten,
[/align]Battery Life: I use 9000mah D and 5000mah C rechargeable batteries in my Leaf River IR cameras, the longest I have left them in the woods without changing batteries is 4 weeks in 10 to 20 degree night and 40 degree days and the meter still showed half charge and the cameras were still taking pictures, I believe I could of left them out at least 2 more weeks without any problems.
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[/align]Set Up: Like anything else after a couple times the set up is very simple. I also have a Cuddeback, a Moultrie IR and a Homebrew. The Cuddeback is the most difficult to rememberthe set up.
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[/align]Memory Cards: I use Sandisk 256 cards and never had a problem.
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[/align]Viewing screen: It off all the time, you got to turn it on and off. I don't know if it will turn itself off if you forget to turn it off.
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[/align]Sensitivity Adjustment: I always leave it half way, instructions say you only turn the sensitivity up in hot weather, I leave it half way, even in hot weather and never had a sensitivity issue.
[/align]Check out this site, lots of camera info. http://www.chasingame.com/forum/[/align]Good Luck[/align] Joe[/align]