Recent changes haven't really improved the site much. Rewards for some surveys are pitifully small for the time they take. Recently I have completed a couple of surveys but have not been rewarded. There is not a simple way to report this as the surveys cannot be referred to in an identifiable way.
Rewards take too long to be processed - other survey sites manage to do this much more quickly.
Disappointed that my favoured reward (Amazon voucher) now needs you to reach £30 instead of £20 as previously.