A very generous VF'er gifted these to me and after doing them for four weeks, I already have the body of an athlete!
The good:
1. They will kick your butt! They're challenging, yet do-able.
2. Because they're short, you can use them as add-ons.
3. Each DVD has three separate work-outs, so you can mix and match in different ways.
4. They are time-efficient - no standing around yapping, although Marta does say you can take a quick break, or drink some water now and then, so I think she intends that you hit the Pause button when you need to.
5.
Endurance, in particular, will build strength and endurance through lots of planks, push-ups, burpees and variations thereof - which is either a pro or a con, depending on your feelings about said exercises.
6. The workouts are rapidly increasing my overall fitness and endurance - more quickly than I would have expected.
7. I'm new to combined strength exercises with light weights, but picked up all the moves very quickly; there's nothing awkward or seemingly unsafe.
8. I'm developing a strange girl-crush on Marta - not sure if that's good or bad.
The bad:
1. There are no warm-ups, cool-downs or stretches, which isn't a problem for me, as I just do my own.
2. The workouts aren't exactly "fun", but then they're not really that kind of workout.
3. Marta occasionally says "C'mon - you're getting the body of an athlete!" which may bug some people, but I think of it in terms of "moving like an athlete", or "developing the efficiency of an athlete".
4. Marta doesn't provide much in the way of form pointers, (see point 4 above) but then they are advanced workouts.
In summary, these are straightforward, no-fluff workouts, with a lot of stuff on each DVD. I'm looking forward to my next Montenegro rotation, and if Marta puts out more DVDs I would definitely get them.