Based on the user reviews of the Solitaire Classic app, here are three cons and pros: **Cons:** 1. Lack of customization options limiting game experience, users want more layouts. 2. Some users experience ads interrupting gameplay, find them annoying and intrusive. 3. Limited ability to save game progress, frustrating for users who want to pause. **Pros:** 1. Simple and intuitive interface makes it easy to play for new and experienced users. 2. Game is relaxing and calming, users praise its ability to reduce stress and anxiety. 3. No in-app purchases required, free to play with no hidden fees or limitations. Please note that the reviews are subject to change over time, and this conclusion is based on a snapshot of the reviews at the time of my knowledge cutoff.