Pros:

• The ghosts are the best part of the anime
• The mystery here is interesting
• Nailed the horror (don't feel good horror than jump scare city)

Neutral:

• Characters look weird for me
• Music is catchy but I think it's cheap (maybe I'm an old man in music tastes I guess)
• Very slow pacing (but maybe because of the horror maybe)

Cons:

• Too much unnecessary fanservice on the first third of the series.
• MC being tortured is not really my type
• Julia is underused
• Sequel-bait ending

It's neither good nor bad. It has something going on here bogged down by a lot of things.

The plot is very very slow. It builds up the mystery of the world pretty nicely. They don't tell you right away. The ghosts are spooky but they are so interesting on why they exist and how they operate. If you want for the plot to kick in, you have to watch around the latter half of the anime. Before that, enjoy the first 4 episodes where they put ecchi shots fairly frequently. I don't blame you if you dropped this anime in this part because of the excessive fanservice. Thankfully it was significantly toned down Episode 5 and onwards. For the people that dropped the anime because of it, try again because there is some decent story here. The ending is kinda meh and unsatisfying. Sure, the supposed main antagonist was sorted out in episode 11 and 12, but it has unresolved mysteries in play here with the dreaded "putting more mysteries in the last episode". If you're going to do that, give us assurance that you're making a new season.

Character wise, they're pretty okay. Miko is the main character which usually show a deadpan face :|. My nitpick here is that her face looks off and weird. She could see ghosts clearly though not Hana's auras. Biggest problem for me is that I hate the main character gets tortured constantly. I got scarred for life after watching the hot trash of post-movie Spongebob and later seasons of FOP. Admittedly, it's handled so much better than those shows. Rounding off the cast is Hana, energetic and a glutton.

Spoiler, click to view

She can't see but has an aura that could cook ghosts

then Yulia? Julia? I don't know which is the correct name.

Spoiler, click to view

She could see small ghosts though not the big ones and can see auras.

She's kinda underused here usually explaining their powers and fearing Miko for a fair amount of her screentime.

Visually it's okay. Some good, some bad. Ghosts are a highlight and the sore thumb. 90% of the time, they're spooky owing to the decent effects they put around it. The other 10%, it's not that great because of the color choices on some ghosts. Other than that, there's nothing of note here.

Spoiler, click to view

The ones with the gold outline that represents Miko's protection against ghosts can be difficult to see because of the warm background which is always there when they appear

Music in the anime, it's pretty good. It ramps up the atmosphere of the stuff that happens there. The OP/ED? same though I think it's pretty cheap with it's repetition of words especially the opening. That's just my taste in music. If you like this style of music then good on you,

This is a pretty good horror anime even though this isn't my cup of tea. The plot is pretty good albeit slow paced and the characters are nice to have. It gets dragged down by a poor first impression (because of fanservice), slow pacing and an unsatisfying ending. Give it a watch if you want some spookies and I hope they get the greenlight on a season 2.