I have noticed some survey decrease since their name changes. They used to send at least one survey per week, now I only receive about 2 surveys per month. You earn points for completing surveys, usually from 1000 points - 2500 points depends on the length of the survey.  You need to have 4500  points to redeem payment which is gift certificate.

One improvement since the change is you will get 100 points if disqualify for a survey. OTX also outsource their surveys to other paid survey sites quite often.