After seeing way too many listings with that same glossy, weirdly perfect stitched look, I put togehter a little routine for checking kits before I spend money. First, I zoom way in on the listing photos. Real stitched work shows thread texture, little fiber fuzz, uneven tension. If the fabric looks smooth and the stitches are impossibly clean, it is probably a digitally generated picture. Second, I count the colors against the thread pack they ship. Real kits list six-strand cotton in maybe a dozen shades. Fakes promise a rainbow and send four sad skeins.
Third, and this is the big one, I look at the printed pattern sheet. A legitimate design translates into actual stitches you can follow. If the pattern is a blurry smear or the finished photo shows detail that no needle and floss could ever reproduce, skip it. I did buy one out of curiosity last month, just to see. The hoop was so flimsy the screw stripped on the first tighten, and the floss snapped if you looked at it wrong. Salvage tip though: toss the printed fabric, but a good snug hoop and decent floss from your local shop will turn the project around fast. Honestly the pattern itself can be redrawn by hand on fresh cotton with a water-soluble pen, and it becomes a decent practice piece.