A friend on the other coast of FL saw the Doobies last fall and liked it. Not that big of a fan myself (I like the pre-MM stuff). My last concert was Boz Scaggs at the Kravis Center a couple of years ago. If you get a chance to see him - do it. He was great.
Saw him just over a year ago in Albany NY at the Egg. The Doobies reunion tour will have both singers. It's a fine concert night, some entertainment, they're not my favs.