Customer feedback for FunFlatables in Gurnee is generally positive, with many parents appreciating the variety of activities and the spacious play areas that keep children engaged. Safety is often highlighted, with reviewers noting that the facility is well-maintained and staff are attentive. However, some parents express concerns about the cleanliness of certain areas and the pricing, mentioning that admission can be on the higher side for larger families. Overall, FunFlatables is seen as a fun and safe destination for children, though improvements in cleanliness and value could enhance the experience.