Couchbase Automated testing tools?

I used YCSB. I cannot remember how I set it up but it was a bit tricky. Also I cannot remember the numbers. The bottom line for me was that YCSB showed that my tiny setup would go very far. And in production I needed to go from 2GB to 8GB RAM per node.
Would be great if you can follow-up about your experience, or if you used different software to stress test