Just saw them in Mansfield, MA.
The bad: predicable set (same 14 songs; Ozzy still screwed up the intro to "Behind The Wall Of Sleep"); Ozzy, same "Show me your fucking hands!"; Geezer didn't stray from the same five-foot circle the entire night, and Tony spent 90% of his time WAAAYYYY over on stage left. Adam Wakeman literally behind a black curtain (though they did introduce him and he poked his head out).
The good: everything fucking else. Ozzy sounded great. I was in the fourth row, center right, and Geezer was right in front of me, and the man is a fucking monster. Didn't even break a sweat, yet he nailed After Forever, Hand of Doom, Bassically... a king. Tony is so frustrating; he makes it look SO FUCKING EASY, it's ridiculous. But not a missed note, and during... Dirty Women I think it was, he extended his solo, and Ozzy just looked at him like "can you fucking believe this?" There was a quick flash where it looked like he was getting exasperated, but I could be wrong; the rest was pure admiration. After easily half the songs, Tony and Ozzy met in front of the drum riser and exchanged laughs. They were CLEARLY having fun and it wasn't just for the money.
I've long said that I dig watching old guys who have been doing this for years play. Cheap Trick, Kiss, Aerosmith... add Sabbath to the list. They were really good. Enough so you know it wasn't piped in, but close enough where you know they can play every note of the songs they wrote.
By the way, Rival Sons blew me out of the water. They are REALLY good. The singer sang every note like his life depended on it, and the guitar player was cool as shit. Plus, I could see the guitar players daughter sitting cross-legged on the side of the stage with her teddy bear watching Dad (I know it was his kid because the guy behind me knew the keyboard player). I'm a dad of a daughter and it was very cute.