Lord have mercy! Read the horrendous reviews on Optics Planet, a vendor that sells them. This is an $89 optic with bells and whistles, each of which diminishes the manufacturer's ability to provide quality optical glass and basic construction. I'm not at all surprised to see the one star and two star horror stories. I have no personal experience with the optic or the company, but those stories would drive me away immediately.
The few good reviews appear to be from people who just bought the optic before it fell apart externally or internally or refused to make turret adjustments, and are probably people with little comparative knowledge about how even basic bargain optics should work.
If are on a tight budget (and we all understand budgetary constraints), go with reputable companies that stand by their products, like Primary Arms or Lucid for Asian manufactured optics.