She is stout.
Akoure is not particularly strong in the One Power. Her level of strength is described by "The Wheel of Time Companion" as 24(12) which is a middle level in Aes Sedai hierarchy. With this level of strength she is unable to open alone a suitable gateway to Travel.
She has remained loyal to the White Tower during the split.
Akoure sent reports back to the Gray Ajah in the White Tower about the outcome of the expedition.
Like many sisters held in the Black Tower she was most probably turned to the Shadow by Taim's cronies.