It has been almost 8 years since I launched my last app on Google play store. What I learnt was that app reviews can be very insightful to your product development but a one-star really damages your overall rating.
Back in the days there wasn't any truly robust analytics features offered to automatically analyse comments, only filters to sort comments by the number of stars if I remember correctly.
How are things now?
What are you using to analyse and gain actionable insights from comments from your users?
Do you have to manually check reviews routinely?