I have not watched the whole series, just the first few sections.
Thusfar, I'm underwhelmed.
The production is very, very good. Great case, very nice screened DVDs, well done intro, menus, and titles. The establishing shots aren't great, usually a head shot of Margarida, not looking very comfortable, annoucing things like 'Okay, now I show how to open the guard another way' (for the third or forth time). Since there were already titles, this part could have been skipped.
In general, Margarida speaks good enough English to understand, but as with many not fluent in a language, tends to fall into filler ('So, what am I going to do next?') while likely doing internal translation.
As to the content, after only watching the escapes, guard opening, and passing open guard sections, it was not what I hoped.
The individual moves vary from very good to some which (like yanking your arm out of armbar from the guard) might be too attribute dependant, with most somewhere in between. He explains the movements well enough, but I was hoping for much, much more detail, especially during the repeat of the technique (which was even sometimes from the same/similar camera angle).
The major problem, IMHO, is that while the techniques are grouped into sections, the techniques within those sections have no organization or flow between them. Ideally, I would prefer to have seen 1 technique, then variations based on different types of resistance, and how Margarida applies his strategy in flowing between them.
Instead of 'Here's another pass', I would have prefered something more like Sperry with 'Okay, now the smart opponent knows this, and will counter, so you have to...'
He does show a lot of techniques, so people just looking for a lot of techniques would likely be happy. They are very basic, but IMHO basic techniques are core techniques, but they need more detailed explination, and stategic integration, to really shine.
(The DVD froze during Passing Open Guard, and I had to leave, so I didn't see any more yet. When/if I do, I will add to the thread. Hopefully, what I saw was just a rough spot, and there is excellent content to follow...)