You have to know George Bernard Shaw, i guess. Well, I didn't. So I spent the entire act 1 and some of act 2 trying to figure out what was going on!
You really should read the following article before attending. http://www.variety.com/review/VE1117931831.html?categoryid=33&cs=1
After you do - you will be much more informed. As far as performances go - this was top notch! Swoozie Kurtz was a gem - sarcastic, hilarious, never missed a beat. Philliip Bosco, who sometimes is hit-and-miss, was firmly the commanding patriarch of the house.
In the Roundabout tradition, the sets and lighting were magnificant. Top notch on Broadway as usual. Just read the review first!! Be informed!