I like the performance aspect of EF Series. It basically provides everything that we are looking for as a solution, very low latency and very high performance.
NetApp EF-Series All Flash Arrays provides high performance for database access and system operation, with rapid deployment, easy integration, and efficient area cloning features. It supports specific performance margins for workloads and includes MetroCluster switchover for disaster recovery. NetApp EF-Series compares favorably in scalability and performance against competitors like Dell Unity XT. However, improvements are needed in integration with some Cisco products, rebuilding speed, and compression and deduplication, with a high price for the All Flash variant.