Based on the users' reviews of the Shredding Machine app, here are three cons and pros in English, limited to 15 words each: **Cons:** 1. "Crashes frequently and requires constant restarts, frustrating and annoying experience overall." 2. "Limited customization options and settings, can't tailor workout to individual's needs." 3. "Some users report inaccuracies in tracking progress and calorie burn estimates." **Pros:** 1. "User-friendly interface and intuitive design make it easy to navigate and get started." 2. "Effective and challenging workout routines that keep users engaged and motivated." 3. "Community support and leaderboards provide accountability and friendly competition."