According to the latest info, Dumpster is rated 4.1 on Google Play. Take into account the important detail: ads are a part of this application and it offers in-app purchases. Samsung and Micromax users highly appreciate the app.
A free .apk installation package of Dumpster 22.214.171.12446 is available from Droid Informer and you can take a look at users' reviews on this site. Prepare 10 MB of free space on your device for this app setup package and keep in mind that it works fine on Android 4.1 and above.
As users see it, there are several pluses, they are a user-friendly interface, good performance, useful features and great support. From the users' point of view, the major drawbacks of the app are stability issues, banner ads at the bottom and high battery consumption.