Instruct: Classify the given Amazon customer review as either counterfactual or not counterfactual.
Query: "As for attaching the TV, first I had to use the extension brackets (since my TV is 55\ with a 400x400 VESA mounting hole pattern), which is the only part of this installation that was even remotely challenging--you have to make sure the holes on the TV line up after you've put on the extension brackets, which took a little bit of finagling and trial and error, but wasn't too bad."""