What I liked the most is Vedhika's acting, you can go for it. Great storytelling, good cgi effects and beautiful set designs.
The movie has comedy scenes as well which makes it enjoyable if you have good sense of humour. I also see a lot of character development across the series, at times it can feel slow for people but I liked it overall.
What should you know before watching it is that, though it doesn't contain explicit scenes, there are reference of sex, and kissing scenes.
Although they have used less cgi effects, but scenes at time can feel overly edited for fewer audience.
At last, what outweigh these disadvantages is the plot and the mystery that we are left with in the end of series. No movie or web series is perfect but it is good. That's what I felt after watching it. Better than typical Bollywood and tollywood horror movies and ghosts movie.