Based on the users' reviews of the Business Messaging app by AT&T, here are three cons and pros: **Cons:** 1. Frustratingly, the app often crashes or freezes, disrupting work flow. 2. Limited features compared to competitors, with some essential functions missing. 3. Poor customer support, with lengthy response times and ineffective solutions. **Pros:** 1. Relatively easy to set up and use, with a user-friendly interface available. 2. Secure and reliable messaging system, with end-to-end encryption ensuring safety. 3. Helpful for remote teams, enabling real-time collaboration and instant messaging. Note: Please note that the conclusions are based on the general tone and content of the user reviews, and may not reflect the complete or exact opinions of all users.