Dracula, or Horror of Dracula, is a pretty by-the-numbers Dracula film.
This one, in particular, focuses on Dr. Van Helsing, giving the titular character very few scenes. Regardless, the acting is effective in most of the main characters, including Dracula himself.
This film doesn't stretch the lore of Dracula much, rather just producing a solid film within the already-crafted confines, which works well enough. While it's not groundbreaking, it's not bad, either, which is a very good thing.
Overall, it's a touch of a drag, but the solid score brings the viewer right back into the action, which is a nice touch on most of these older movies.