Do a search for PayQuicker, using "all dates," here on the forum and you'll see plenty. You can also search for ACE, Associate Consumer Evaluations. ACE switched from PayPal to PayQuicker a few years ago. After a long period of adjustment, during which ACE lost many long-time shoppers who did not want to sign up with PayQuicker, the number of shopper complaints and problems with PayQuicker escalated. ACE dropped PayQuicker and has gone with another pay method.
You are wise to research and consider before jumping into registering with PayQuicker.