Based on the users' reviews of MidiFlow Transposer Audiobus, here are three cons and pros in English, limited to 15 words each: **Cons:** 1. Some users found the interface cluttered and overwhelming, leading to frustration. 2. A few reviewers experienced compatibility issues with certain plugins and devices. 3. A few users wished for more customization options and advanced features. **Pros:** 1. Most users praised the app's ease of use and intuitive design, making it accessible. 2. Many reviewers appreciated the app's ability to accurately transpose MIDI files. 3. Several users enjoyed the ability to export transformed MIDI files for further editing. Note: The reviews are subject to change over time, and these conclusions are based on a snapshot of the reviews available at the time of my knowledge cutoff.