Not in my experience. Liberty is great....and I love it to death. But I test drove 2.0 then flashed odexed GB leak and I cannot get myself to go back....GB is stable, fast, and seems great on battery.
I got 1 day and 3 hours of a charge with heavy use to where I was only getting 10 to 12 hours with Liberty.....which there was over the 8 hours or so I was getting with others.
One big perk to Liberty though.....THEMES....or just over all customization.