This is a grappling martial art developed by Moni Aizik based on Judo. It was specifically created for the purpose of self-defence in real-life situations of today, where guns and knives are usually present.
This, however, is not Krav Maga as created by Imi Lichtenfield, and one should not be confused by the two. I personally think Moni just incorporated the word Krav Maga as a sales gimmick to attract people. Nonetheless, it is an effective martial art, and all of the moves and techniques are applicable in real life. I actually found a lot of similarities between Combat Krav Maga (CKM) and Combat Sambo, probably because both arts have roots in Jiu Jitsu.
Since it is a grappling art, it also has a bit of a learning curve, and practice is required before you could apply the techniques in a life-threatening situation. The striking in CKM has its roots in Muay Thai, but not a lot of attention is given to this aspect. Although the techniques are quite simple, fast reflexes are needed to properly execute the moves taught. Its gun and knife defences are effective, but I still prefer Krav Maga’s approach, which will be discussed next. Again there’s no reason not to consider this as your primary form of self-defence; you will not be disappointed.