There is a demand for beta product reviews - people are curious and don't want to install/participate in the beta program themselves. Results might not be relevant for the final product and 20 links might not be enough to determine the detection rate of a security application. With that being said I was myself curios too see the new NIS in action and this video satisfied my curiosity. Therefore I thank the author for taking the time to make it.
As for narrating the videos, yes - while making my 2-3 reviews, I also felt disadvantaged by the fact that I can't speak English well enough (my accent is probably terrible too). Some YouTube reviewers add useful/entertaining commentaries to their videos. To compensate, this review has some nice effects and it is short enough, so it is OK, imo. Some might even prefer it this way.
@MrXidus - don't let some comments upset you. You can't make everyone happy but 1,235 subscribers like your videos. Sometimes even negative comments generate good ideas. Anyway, welcome to our forum, I personally enjoy having you here.