I'm currently 30 weeks pregnant after our first attempt at ICSI in January of this year. We were told that ICSI was our only chance to have a baby, due to issues with both quality and quantity of dh's sperm.
For the couple, the process is the same as IVF, the ICSI bit happens in the lab.
And yes a 30% success rate sounds about right, we were very lucky for our first attempt to work.
I wish your friend good luck and success
Hugs,
Artoo.