I'm testing it out and it seems pretty legit if you need a big, big key value store and don't want to wrangle redis or memcached shards. Non-Java drivers are a

I'm testing it out and it seems pretty legit if you need a big, big key value store and don't want to wrangle redis or memcached shards. Non-Java drivers are a bit behind, but nothing seems to have the same 95%tile latency, fast failover, SSD performance for actual read loads, and relatively easy scale out.