Is it legit 3 DS?

I'm going to buy a Nintendo ds for the first time, but I have doubts about the reliability of the product. It has traces of use and the opinions about the product are positive (one review and two five-star opinions) and the fact that the seller is not afraid to show the product in as many as 14 photos makes it credible that I cannot refer to the inscriptions on the back of the ds, because I'm not experienced, that's why I'm asking if it's worth buying (the price is also high)