Albina Yes and no, it is a very good book and worth a read and is definitely meant as a critique on a colonial patriarchical society. Mostly it is just about the deep unhappiness that comes with not being able to live your life on your own terms.
Lasha Usupashvili No, it isn't, many consider Doris Lessing as a feminist writer which is not correct, her books are about women who struggle, in love in their carrier, etc. The way she portrays her characters would be controversial for many feminists, for example, their need for a strong man and their protection.
Lyn Not in any lecturing way. No more than any other book which looks at people's lives. It does show how women of that era were treated, but it is also about its time and place with class, race, prejudice, human nature, loss, isolation, money or lack of it. It is a very sparse landscape, dry and harsh and isolated. Some people can shine there, others just burn.