I saw the Broadway production in December 1960 and was very moved by it. Angela Lansbury was terrific as the mother, but it was Joan Plowright as Jo, who really made the piece. Hers was a totally unforgettable performance, and i would think any production of the play needs a great Jo to work. The other three actors were wonderful as well. About fifteen years ago I saw a small off off Broadway production and the play seemed slow and plodding. Was it just my youth, or five incredible actors that made it work so much the first time? Tony Richardson also directed a movie version of it with an actress named Rita Tushingham playing Jo that also might be worth checking out.