I used this product along side my HyperV server in order that if one crashed or went down we have another solution available without losing data from any other servers running VMs within our environment - it does exactly what you would expect! No problems found so far but as ever beware when purchasing products like these make sure they fit your needs firstly then read reviews before going ahead otherwise could end up getting expensive stuff which doesn't work correctly after all! It's good because allows us failover VM instances safely allowing them continue their life cycles whilst providing continuity should there be issues arise (such has hardware failure/components malfunctioning etc).