I have been taking Krav Maga for almost 3 months now, but i'm a 2nd Dan in our general style of Karate and 2nd Dan in Ju-Jitsu. I have studied the traditional martial arts for the last 13 years, and still train. So this is a great post for a newbie like me to particicpate in.
My initial impressions of Krav Maga vs. the Traditional Arts I have studied:
1) The component of KM's actual self-defense lasts less than a 1/4 of a second, then it turns into balastic offensive moves to overwhelm the agressor and end the fight (and get out of there) as soon as possible. Just like football, the best defense is an offense.
2) In KM, the 18 and over student is taught brutal techniques and strategy, as well as when and how to turn on and off the switch, during the first class! In my traditional arts training experience, this took many years and in some cases, real self defense attacks and strategy has never been taught to students. And rarely practiced or trained for. The reasoning was, and still is, it is a liability if we teach someone this or that. (If someone is taught how to use a gun, is the teacher liable for the student's actions?). I've seen traditional martial arts students who have studied for 3,4,5 years who would loose a fight with a KM student of 3 months, given the same size, athletic ability and mental attitude. It's a shame.
3) KM students have better cardio training. I'm almost 50 and thought I was in decent shape, but these KM sessions are exhausting. KM also works on the ability to take a hit (of sorts) and respond. During drills that one holds a bag or mit for a partner, the partner is pretty much hitting as hard as possible, all the time.
4) With my traditional MA training, I have a lot more tools in my bag and can be soft or hard (vs. always being hard). I have more advanced strategies and movements, as well as more control over my body. I also have non-violent techniques that can be used vs. none in KM (that i've seen so far).
I need to pass the KM Level-1 test before I can participate in "Fight Night", which I hope is sometime in February. Then i'll better be able add to the comparison of experienced KM vs. the traditional martial artists. Me being the later.