Comment by ev1

They are helpful to me: these reviews tell me when a free app might be hiding payments behind IAP (Android's store does not list every possible IAP + their cost and description, iOS does, so on Android almost every app just has a $0.99-$99.99 listing), they tell me when an app is trying to potentially steal data, contacts, or similar, they tell me that there might be a similar product that is cheaper or actually free in the same niche.