Keystone RV Co. manufactures RVs, including fifth wheels and travel trailers like the Montana and Cougar models. Experiences with their products vary significantly. One owner of a 2021 Montana, their third RV, reports it is the best one with no complaints after 10,000 miles of full-time living. They note no problems with slideouts, awnings, plumbing, electrical systems, the roof, or appliances, stating they are incredibly happy and would look to Keystone again. However, a purchase of a 2021 Cougar travel trailer revealed multiple initial quality issues. These included misaligned drawers, a long deep scratch on the countertop, loose trim, wood shavings and wiring debris under the sofa, wiring damage to an awning light, and a misaligned front cap LED light. This suggests potential inconsistencies in factory quality inspection, emphasizing the importance of a thorough pre-purchase inspection and dealership support for repairs. The company is also described internally as a good place to work that is challenging and keeps you in shape, building many different trailers.