This is a large cast presentational production that has more in common with Great White Hope and Inherit the Wind than Ann. I admit the Simon seems big for the show, but Bengal Tiger didn't seem dwarfed by the Rodgers stage. And this is a bigger show.
For my take on the show in The Wrap, here's:
http://www.thewrap.com/all-the-way-theater-review-bryan-cranston-moves-from-walter-whites-tighty-whities-to-lbjs-boxers/ "‘Breaking Bad' star good, if not quite Broadway-ready, in tale of Lyndon Baines Johnson using Civil Rights to fill JFK’s shoes
Bryan Cranston is leaving the meth maker in the dust. By playing Lyndon Baines Johnson, whose outsized personality has reached the level of myth, the actor proves he’s as canny a strategist with his career as Walter White and the Texan were about theirs.
Transitioning out of an epochal TV role can be notoriously tricky. But on the day “Breaking Bad” bowed out, Cranston was already giving himself a persuasive make-over in Robert Schenkkan’s “All the Way,” an epic play that’s fittingly all about the wrenching, roiling process of change."...