Rebeca Martinez workouts

onandoff

Few weeks ago I found some very interesting workouts on youtube, created by personal trainer Rebeca Martinez (bekafit). There are very short and very intense. I have just started adding some of them to my basic thing, cause I like it doesn't take long to do it, but they kick my butt.
Anyone done any of those workouts? I would love to hear opinions about it.

onandoff

Ok, so there's really no one else who knew/tried it...