I watched the pilot.
It's pretty much exactly what you'd expect from this type of show. It's HBO so of course the production quality is top notch. The cast is good. We follow the poor, the new rich and the old rich.
There was no violence, no sex and very little humor.
In terms of plot there was nothing especially exciting happening, no dramatic "hook" to make you tune in next week. But I'm interested in the subject matter and on paper the show should be good, so I'll keep watching for a while.