I'm a Potterhead myself, one of those who wrote in newsgroups (when newsgrups did still exist) trying to figure out with other fans what the next book could be (in the era of BOOKS, not movies yet).
Said that, I've also seen the movies. All of them. A comparison with this one would be highly unfair, as the "official" movies are professional products.
This one should be, in my humble opinion, seen like a fan story.
But despite its short lenght (less than an hour) and the poorness of the sets (all the movie is filmed inside), I saw this Voldemort: Origins of the Heir with pleasure. I gave 8 to this movie.
Yes, actors are dubbed but revoicers are English speakers (their names can be read in credits) and no one would have liked someone talking English with Italian accent. So this is a plus, not a con.
Yes, there are characters not canonic, but this is for the sake of the plot.
Costumes are great. Lights are good. Directing might not be so great, but good enough.
To sum it up, my opinion is highly positive.
Review of Voldemort: Origins of the Heir
Voldemort: Origins of the Heir
(2018 Video)
A fan (not professional) movie, and yet enjoyable and not bad at all
24 January 2018