I will not at all say MS Word is perfect, but I still haven’t seen a program that works better for me. Spelling and grammar is not what I am best at, and English is not my first language so I take the help I can get. I have used OpenOffice/LibreOffice and am using Google Docs, but none of them comes close to Word in helping with my spelling and grammar. I did type this comment in Word to get rid of the most obvious errors, and I do even type my master thesis in Word and copy the text to my latex editor for formatting. For me it was worth it to pay for Office instead of using any of the free alternatives.