i got ester from a premium summon and looking at the stats i am pretty sure her SAW is great. 45 seconds flying to 60 seconds flying with 1.5x attack and only 20% def hit. and her awakened ability of 50% extra flight time for all pegs means she goes from just flying to flying and MURDERING EVERYTHING.
also it's only def not MR so she can tank ranged magic just as well as ever.