Based on the users' reviews, here are three cons and three pros of the 5-String Bass Note Legend app: **Cons:** 1. Limited song library and slow song loading times frustrating some users. 2. Lack of bass guitar customization options disappointing to some musicians. 3. Advertisements can be intrusive and disrupt gameplay experience. **Pros:** 1. Realistic note playing simulations and immersive playing experience praised by users. 2. Useful learning tool for beginners and improving skills, as per many reviewers. 3. Simple and intuitive interface makes it easy to navigate and play along.