Even though those 100 users who review their service did not continue to use it afterwards but everyone of them (expect a few) review their service top notch and excellent 

If the Mixin Safe Service was not trustable, had flaws then why people did not highlight in the review ? I must say it is a wrong behavior for most of the reviewers to review "Good" only (Maybe they got the money from the company so its hard to say bad words about them)