Woolf has a style of writing that is extremely stream-of-consciousness, which isn't for everyone. Lots of tangents and run-off ideas that she brings back around to incorporate into her argument. It can be a bit repetitive. 

The content of this is good though. Her thesis is that in order to succeed in an artistic endeavor like writing, a woman needs time, space, and income. She can't be a busy mother, she can't need to work for a living, and she can't be controlled by a spouse as property without her own agency. 

Based on the time this was written (1928), it's great. Looking at it through a modern lens brings up some questions of racism and intersectionality.