Yes, It still works.
There are many factors here to point it out, but taking into consideration the
competition, and IF you are engaged in having GOOD CONTENT in this website
you can rank it.
As of yesterday, I was working on some Google maps when I found a business in
Los Angeles (therapy) at #1 for Google Maps (7 box) carrying .info as extension. Other thing... It was clear work of a IM.
Also, I still see domains with .info extension ranking at top position.
You know that Google will be up your a@@ because of it, what you have to do
is prove Google wrong.