scaled agile framework (please share your experiences)

I am transitioning teams at my employer and the group that I am joining the leadership team of is a big fan of Dean Leffingwell's Scaled Agile Framework (pronounced SAFe).  I'll have to admit that it is a bit new to me and I wish there was more information available than just from the creator of the framework himself (his framework/product site, his blog and his books) and a single vendor (i.e. Rally).  I wish it was more "community" driven, but the lack of that surely does not mean there isn't some goodness here. 

If you've researched or used SAFe before, I'd sure appreciate it if you could share your experiences in the comments section below.