Ghost Hunt is a goofy horror anime that manages to be both completely trope-y and genuinely scary, perfectly balancing one aspect with the other. It's exceptionally fun, and well-worth a watch for anyone who is interested in horror.
Ghost Hunt follows a high-school student (of course) who manages to get herself indebted to a ghost hunting agency led by a narcissist she can't help but find annoyingly handsome. Along with a Catholic priest, a Shinto monk, a washed-up shrine maiden, a Chinese spiritualist, and other religious practitioners, the agency takes on requests which form short arcs, generally in the 3-4 episode range.
If this all sounds like the set-up for a horror parody- think an anime "Scary Movie"- I wouldn't blame your assumption. Indeed, Ghost Hunt does make fun of many well-worn horror tropes, but with a key distinction: Ghost Hunt is first a good horror anime, then secondly a parody. I would estimate the show is about 75% genuine, 25% parody, but those rarely detract from one another.
Unfortunately, the quality of Ghost Hunt is not equally distributed among its arcs. Some are better than others, and one is clearly head-and-shoulders the peak of the show. The tone of each arc can vary wildly, as can the fear factor- but I wouldn't describe any part as "bad". Also- the worse arcs tend to be shorter.
As for the technical aspects of the show, they're fine. The animation and soundtrack are alright, though I did enjoy the opening. I also appreciated the sound design for some of the creepier incidents. I can't say that any technical component particularly stood out, but neither did it detract.
Finally: be prepared for some creepy shenanigans! Ghost Hunt does not pull many punches on the scarier aspects. Don't let that "shoujo" tag fool you, as it definitely makes you pull your feet under the covers. If shows like Another appeal to you, or you think it's fun to be a little creeped out, I highly recommend giving Ghost Hunt a shot.