No, its not easy or quick way to get money. You get almost nothing with small or medium blog. You may get some money if you have website with 50k unique visitors everyday, but with smaller blogs, its just wasting time and making website look ugly.

Biggest thing that I hate on adsense is that Google can’t tell how much I can get, like 0.1€ per click.

Another problem with these ads is that many users like to filter then(Thats totally ok, I do it also). And another half of peopl don’t click ads because they know that it is a ad.

Don’t waste your time unless you have lot’s of visitors on your website.