Hell yes. My kids are going to krav maga with me.
Krav Maga is fucking awesome. That's what I want to learn. Any system that teaches you to fight against opponents with firearms and multiple opponents is my kind of stuff.
They would help, but it's not needed. KM is a system that caters to the person's individual talent/abilities. You just have to be tough; from what I understand, you regularly get the shit beat out of you during practice. It helps condition you to take a hit, which you inevitably will if you are fighting.Do you do any other disciplines or just Krav? Would you say that it is effective as a standalone or you should learn other arts as well?
If you do take anything else in addition to it, I'd suggest Gracie Jiu-Jitsu. Varda being from Brazil should know exactly what that is as well. It will help if the fight goes to the ground.