$$$ This traffic will immensely help you to increase your site's Alexa Rank and also if you have some CPM Site banners, you will also earn from there for the 20000+ impressions... It may not be safe for Google Adsense, nor I will recommend it as its always good to be safe than sorry 
You can get 500-5000 Unique Views Per Day and the Traffic can be seen in any site tracker, even in google analytics (which means its not a bot traffic)...
