Miles for Opinions sounded good but it's just a bait and switch scheme to get information from its subscribers in return for nothing.
The email I received "inviting" me to sign up promised 500 miles after filling out my first survey. Sounded great. The first six surveys I tried to fill out rejected me because enough people had already filled them out. I spent 30 minutes (no kidding) filling out the 7th one, only to be told at the very end that they already had enough responses. Then I get an email congratulating me on being awarded 250 miles for completing my first survey! Wait a minute. 250 miles?? What happened to the 500 they promised for completing the first survey? Out of curiosity, I then went to my Account to see how many, if any, miles I received for the 30 minute survey I completed.......3 miles. You read that right - 3 miles. Classic BAIT & SWITCH scheme. Needless to say, I unsubscribed immediately. I would not recommend Miles for Opinions to anyone! Total waste of precious time.