While numerous other Krav Maga DVD sets have been produced, and are often high on production values but slim on accurate content, Aviram's 7-hour series is no-frills and definitely "pure." Aviram is the last of the original KM Masters, making his detailed presentations of both the science behind the techniques and their execution unlike any other.
Over the past few decades, while other KM instructors have diluted the science in deference to marital arts trends, Aviram is the guardian of its purest essentials.
This is Krav Maga exactly has Immi Lichtenfeld created it, with Aviram as one of his prized instructors. If you're looking for absolutely genuine Krav Maga, look no further.