Average ratings are useful but easy to misread without context. Recent reviews for the exact product version and repeated complaints matter more.
One rating may cover multiple variants
A single listing can combine reviews for different sizes, colors or generations. Check which exact variant each reviewer purchased.
Prioritize recent reviews
Manufacturers can change components or packaging. Two-year-old reviews may not describe the current product.
Look for repeated problems
One angry review proves little. If many independent buyers report the same failure, the pattern matters.
Customer photos add context
User photos often reveal real size, color, packaging and finish better than studio images.
Bottom line
Keep the solution simple: start with the most likely cause, change one factor at a time, and observe the result. That makes it much easier to identify what actually works in your situation.