I've only heard bad things about Qualityfly. One Ground instructor (self appointed CTKI) who threatens students and makes being there intolerable. He only teaches a few hours per day as he has to spend time doing important CTKI duties, students left to their own devices and self study. They are happy to take your money but don't produce the QUALITY their name suggests. As screwed says, a lot of students have recently left due to being unhappy and have lost money in the process and yes the ratings are from staff, I can't see a single independent review on their site, probably because they remove all the others as they are derogatory. You go cheap, you get poor quality!