Surveytime.io Reviews SCAM or LEGIT?

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Surveytime is a survey company where you get paid instantly for taking surveys .
I have seen this website under a offerwall on gpt site.here is my review of this survey site.

How to join : we can sign-up using Facebook ,Gmail ,Twitter or any other email.This program is available worldwide so anyone can try this .

After signing up we have to fill up our profile usually the same questions as we take up speak up surveys .
How it works: They send survey invitations to email based on our profile information. All surveys available here are worth of 1$ .They will instantly pay you 1$ after completing a survey .There is no referral program.

Rewards : Rewards depends upon the country ,for US users they can redeem through PayPal,gift cards etc.

As per my experience the only thing I liked is instant rewards they give .but the chances of disqualification is too high .After joining in I have completed only one survey and got paid instantly once through PayPal.of course they send frequent survey invitations .

Have any one tried this program? What are your views about it ?.