Remote Blob Storage – Which is the best SharePoint solution?

We are looking at implementing Blob storage on out SharePoint 2010 Enterpise Farm. From the research I’ve done I’ve concluded that the FILESTREAM solution isn’t production ready. (Is this fair?)

I’ve looked at a number of the third party suppliers and wondered what the communities experience are with this and why perhaps one solution is better than another

I’d also be interested to know if you can point me at any real world case studies?