Based on the users' reviews of the Smash Run app, here are three cons and pros: **Cons:** 1. "Disappointing lack of features and customization options, feels limited compared to other running apps." 2. "Glitches and bugs frequently occurring, causing frustration and wasted time." 3. "No support for Apple Watch integration or official iOS integration, feels outdated." **Pros:** 1. "Intuitive interface makes it easy to navigate and track runs, even for beginners." 2. "Motivational and fun game-like features keep me engaged and wanting to improve." 3. "Accurate tracking and analytics provide valuable insights to optimize runs and goals."