Zerto for the Win!

Very responsive, very capable. Overall, the product is very easy to set up and configure. Problems usually encroach when lower-level components are updated for changed, for instance, vSphere. Support usually can help us work through any issues that pop up from upgrades to other software, but their own updates can lag behind a little.

Usability was the primary reason we purchased the software in the first place. We had compared it to several other software products in the same area, and it was by far the easiest to set up and use. Long-term maintenance proved to be similar, with updates driven by updates to VMware and vSphere, rather than the product itself.

For direct failover between data centers, this product excels. Of course, connectivity between data centers is at a premium and the product doesn't fare well with excessive latency. For metro area failover, it's ideal, for a longer, continental distance, the latency would probably be too much. Also, the rate of data change is key: a very high rate of data change is challenging, even with this product.