I wonder how good it's at solving the "hard" (with noise added, eg. https://i.imgur.com/jbf0Xfy.png) captchas. I went through the "past puzzles" zip, and they look easy, compared to the "hard" ones you get if you're on tor (or otherwise "shady" network) or the site owner has turned up the difficulty setting[1].

[1] https://stackoverflow.com/questions/23314528/how-to-reduce-r...