>>4263544my man I hope you got a good deal.. I bought this exact star tracker second hand from eBay for ~200 and I wouldn't pay that much for one now.
they are nice but once you start getting any deeper into the hobby (for instance taking images at 300mm+ fl), this will become useless. unfortunately the manufacturing simply isn't precise enough to accommodate high focal length, or even high wind speeds.
that being said, you can still get nice images with it. pic related was taken with it
best of luck to you on your astro journey