And where before it was public, now it's only viewable when logged into an AdWords account. I used to refer clients to it for keyword inspiration when writing content for SEO purposes, but this is no longer an option.
Using tools like UberSuggest (ubersuggest.org) which runs off Google Suggest, or pulling from Google itself (http://clients1.google.com/complete/search?hl=en&output=tool...) is better.
Since Suggest is for users, and it shows the most popular, you can cream off suggested queries which may be based on query volumes. It's relative, but it'll do for now :)