Based on the users' reviews of the idle Zookeeper app, here are three cons and three pros, each within a 15-word limit: **Cons:** 1. "Glitches and bugs cause gameplay issues and loss of progress at times." 2. "Too many ads, including ones that play automatically while playing." 3. "In-app purchases are overly expensive and don't offer fair value." **Pros:** 1. "Addictive gameplay loop and satisfying progression system to keep players engaged." 2. "Beautiful graphics and animations bring the zoo to life in a charming way." 3. "Daily rewards and special events offer variety and encourage consistent play."