Anyone use pgcluster in production?

I was wondering how many people have PGCluster used in production  
environments.

How stable is it? Are there any problems? Are there any versions that  
should be avoided? Which is the better choice for production use  
right now, 1.1 or 1.3? Are there any gotchas to be avoided?

I am evaluating PGCluster as a clustering solution, and would like to  
hear any stories you might have about getting it setup and running.  
I'd also appreciate any tips or tricks to getting things set up for  
optimal performance.

Thanks,
Greg