I really liked her character, being a medical doctor who held true to her doctor's values in the preservation of life, even though her duties as a Green Lantern also called upon her to use lethal force at times (because sometimes in order to save innocent lives, you have to end the lives of remorseless killers).
Also, she was sexy-hot without having to resort to slutty dress (at worst, her cleavage with her bodysuit GL uniform), unlike the "chrome bikini" look(s) of the Star Sapphire Corps. .