I'm about 75% done with ME1 on insanity. Sonoura as an Adept, has proven to be absolutely devastating. She is currently lvl 51, and has died only 2 times since maxout on her Barrier. I started playing her more aggressively, lately and she is right in there on the front lines with the rest of the crew. Using her Biotics, the enemies stay, either in the air or on the floor, pretty much all the time.
BTW..Still running with Wrex and Garrus. I may change up, when I get the boons from the Achevs granted for playing the major part of the game with their char. Sonoura is killing everything and everybody in all quest possible. Good / Bad...doesn't matter...DEAD, DEAD, DEAD...So, when we get to Virmire, and she has to confront her partner Wrex...well, guess what....BAM! At that point, it WILL be a squadmate change.
When she gets to ME2, everybody dies, Council (ME1), squad, crew...GONE! It will be interesting to see how this scenario plays out in ME3 as...
Sonoura...TAKES OVER THE GALAXY!! MooHooHooHooHaHaHaHaHa!!!