Based on the user reviews, here are three pros and cons of the Harbor Inc. app: **Pros:** 1. "Engaging puzzles with unique mechanics keep users entertained and challenged." 2. "Excellent graphics and animations make the game visually appealing." 3. "Simple yet addictive gameplay loops make it hard to put the app down." **Cons:** 1. "Too many ads can be frustrating and disrupt gameplay." 2. "Some levels are too difficult and feel unfair, leading to frustration." 3. "Lack of variety in levels and gameplay mechanics after a while."