Deployment is quicker and EFM is unlikely to attract the excess construction charges usually associated with fibre leased lines. It offers a guaranteed service level backed by a seven-hour fix. The connection is recommended for general Internet usage where unlimited data access is required and also where the upload is critical for data sharing or backup. It offers low latency, jitter free connectivity suitable for mission-critical connections. The only limiting factor is that the service cannot be easily upgraded to give higher speeds.