I tried it a couple of years ago. They were some rough edges, but something I was really eager to see working was their sub projects Datacell ( you can see a pretty cool demo of it there https://www.youtube.com/watch?v=Z36ftaItX1c ). Unfortunately it was not at all ready and this sub project was abandoned. A distributed version of MonetDB with Datacell working would be an absolute killer in the OLAP oriented databases.