The appropriate service for establishing a dedicated network connection that meets the enterprise's requirements for reduced network costs, improved bandwidth, and a consistent network experience is AWS Direct Connect. This service provides a dedicated network link between the on-premises data center and the cloud environment. A VPN solution, while secure, would still use the public internet and might not provide the same level of bandwidth and cost efficiency. Amazon Route 53, being a DNS web service, and Amazon CloudFront, which is a content delivery service, do not directly facilitate dedicated network connectivity between on-premises data centers and cloud environments.