However, as with any such system, it's totally dependent on the quality of instruction and the way one practices and trains. A flaw of the system is that there is no real governing body.... So nearly anyone can hang out a "Krav Maga taught here" sign and teach without any real experience or qualification.
Mark, hit the nail on the head. Krav Maga is a great system, but quality instruction is the key. Research any Krav Maga instructor to make sure his credentials are legit.
Krav Maga is good for a quick fix but only good against an untrained opponent...if you are in a hurry to learn though and get a basic self defense foundation then krap maga is for you...no offense lol I just don't like km that much but against an untrained opponent it'll help you stay safe
depends on the teacher and if you are in the US then i say about 95% of the teachers are guys who never been in a real fight and like to make money of kids who think that this fighting style can turn them into jason statham so that's just a heads up...