I have been doing this for the past 3 years. It has made a huge difference in my hair.
You can try the next two times you wash your hair and see how it works. If it doesn, then you can always go back.
It was a mental change for me, I just had a hard time realizing that no shampoo was a good thing. I had a potluck at my home one day with about 14 natural hair ladies and someone mention this and for 45 minutes I was schooled on why this was a great idea.
I tried it once and have never gone back with the exception of clayrifying which is every other month or so.