Not really. I've been posting about it on my blog for the last two years. Our project is... well, we'll see how it turns out. At the moment, I don't have much hope for it in terms of performance or maintainability. It'll work.
"The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
- Theodore Roosevelt
Author of:
SQL Server Execution Plans
SQL Server Query Performance Tuning