I think the problem that some people have with the show is how different it is from what was advertised. The previews portrayed In/spectre as a horror, when it is actually just a supernatural mystery show.
But even if you wanted a horror, you can't help fall in love with the lead characters and the artwork. The female lead is energetic and fun, even though you expect her to serious and relaxed. There are so many other reasons why this show was so good.
Review of In/Spectre
