Slow to pay out
Was attracted by the £10 joining bonus, and then went on to earn enough to get over the payout threshold. In all respects, pretty much on a par with Quidco in respect of rates and ease of use. Not any higher than 5 stars because when it came to paying out there are a number of administrative obstacles to overcome - I'd say they use some sort of breakage model to retain the commission longer than is necessary. Eventually got paid out though, but it was quite a wait.