Based on the users' reviews, here are three cons and three pros of the Floor Demon app: **Cons:** 1. Limited layout options leave users with limited design choices for their floor plans. 2. Some users experience issues with measurement accuracy, leading to incorrect calculations. 3. The app's customer support is reported to be unresponsive or slow to resolve issues. **Pros:** 1. Intuitive interface makes it easy for users to create complex floor plans with precision. 2. The app's 2D/3D visualization feature helps users better understand their floor plan design. 3. Users praise the app's ability to accurately calculate space and material needs for their projects. Note: The reviews are based on the Apple App Store ratings and reviews, and may not reflect the experiences of all users.