They pay you,  definitely.

They pay you more than many other companies.

They pay you in local currency and by checks from local banks (this means: fewer costs, faster cashing). Currently in these countries: 
Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, the Republic of Ireland, Italy, Japan, the Netherlands, New Zealand, Norway, Portugal, Spain, Sweden, Switzerland, the UK, and the US (and territories).

You can always take a look at your 'account information' which is drawn up in you local currency. Besides, it is well-organized.

A four-level (!) deep referral system.

They are the founders of the system.

The viewbar they provide, which shows the ads, is small and functional, I often use it to search the web.