I purchased this because I needed an inexpensive device to read around the house. It had to be light enough to hold without fatigue, have good battery life, and be able to run a selection of my Android apps. For the most part, it met my expectations.
Price was very good. At $100, this was far less expensive than an iPad (which my daughter absonded with), the Pixel Slate (which though I still own, has lots of software issues), and other devices from Samsung (yup, good devices but out of my price range).
Weight is not bad. It's not as light as the iPad but acceptable for my needs. Battery life seems very good. It took a while to charge, but I've been using it for a few hours and it's still above 80% charge.
Main downside is that the Amazon version of Android doesn't have the Google Play app store. Amazon has a subset of apps including Netflix, various office tools, some games, HBO Go, etc.. These suffice for the most part, but installing Chrome browser requires downloading APKs and enabling supposedly insecure sources. Final nitpick is that the home screen seems like a big adspace for Amazon. I like Amazon but don't want it in my face all the time.