Aluminum Christmas Trees: Viewers didn't waste any time in complaining about the historical inaccuracy of a black man in Victorian London. Simple research into the era will demonstrate that there were plenty (he also isn't English anyway, but an African-American visiting England).
Fan-Preferred Couple: Despite the show being built around a Reincarnation Romance between Dracula and Mina, far more fans of this version ship Mina with her best friend, Lucy. This is mainly because this version of Lucy is a fan favorite as well as an actual lesbian in the show, who has a one sided crush on Mina. The fact that Lucy is played by fangirl favorite actress Katie McGrath is also a major factor in these fan's shipping them.