Thanks to each of you for taking the time to reply. Lots of wisdom here, you've definitely given me some food for thought, and helped me identify areas which I still need to work on.
I'm glad I asked!
I didn't even realize there were reviews until I read this post.
I look for clear examples and documentation, and whether it does what I want. Then I try it. That's it.
Of course, I always try all the modules that could work for me.