Based on the user reviews of the Vienna City Marathon app, here are three pros and three cons in English, with a 15-word limit for each: **Pros:** 1. "Accurate and reliable tracking of distances, pace, and heart rate, making training easier." (14 words) 2. "User-friendly interface and continuous updates with new features keep the app fresh and engaging." (15 words) 3. "Real-time GPS tracking and customizable routes help runners plan and navigate efficiently." (15 words) **Cons:** 1. " Limited customization options for pace and distance goals, making it less personal." (14 words) 2. "Occasional lag and slow loading times make the app feel unresponsive at times." (15 words) 3. "No integration with popular fitness wearables or music services, a notable omission." (15 words) Note that the reviews are based on the users' experiences and opinions, and are subject to variation.