I've mentored brulee in the past and she has so much potential. She puts a fucking ton of effort in to get better, her mechanics are very good, and she is always willing to listen to criticism.
The biggest problem we noticed when trying her out was that she has massive trust issues stemming from her entire 6s career getting constantly baited and ignored by idiot teammates, which led to her making some panicked bad ubers and disengaging at poor times because she believed she wouldn't be protected.
She definitely has the potential to do wonders for a high open or low im team that is dedicated to improving. If that sounds like you, you'd be crazy not to give her a shot.