Reviewers say ScreenRun is most useful for turning screen captures into short, clearer tutorials and client instructions, with the zoom feature called out as especially helpful for highlighting steps. Users also praise the developer for shipping improvements and being responsive. The main criticism is reliability on some setups: one reviewer reports major Firefox bugs and trouble recording sound on Windows, which made the app hard to use there. Overall, sentiment is positive, but cross-browser and Windows performance still look like the main weak spots.
ScreenRun 
