5 stars: Fantastic app. Does all the randomization for you, even allowing you to specify the expansion(s) to randomly pull from. Don't like a card or two of that selection? You can set those to be replaced and keep the rest. It even randomizes expansion specific changes such as whether or not to use Shelters from Dark Ages. Just an absolutely phenomenal app and you should totally use it for all of your dominion games.
3 stars: Nice app with many options, which is great. However, the randomizer algorithm does not work well, which is a major drawback. (Also, recently, after loading profiles (repeatedly), the individual card preferences were erased. This occurred for all profiles. If it was my own mistake, please add a warning before data is erased!)
3 stars: The app works great, best randomizer for Dominion that I have found. I don't like the fact that one of the recent updates changed it to a light background, I would at least like the option to change it back to a dark mode.
4 stars: The single thing missing is a way to change the language by configuration. This makes it impossible to match the card names with the ones in the app if the phone is configured to another language than the dominion game is.
4 stars: After the latest update there is a glitch where it frequently includes cards from sets which were not selected - especially Intrigue 2nd ed. I used to love it - now not so much. The glitch has been present for many months so I'm not optimistic about it ...