It randomly was one of the first games I played on my DS. I was playing it for two or three days straight, I couldn’t put it down. It was like reading a really good book. There’s also a Europe/Japan-only sequel called Last Window: The Secret of Cape West if you’re interested.
Had (maybe still have?) the physical cartridge for this game and remember playing through when it was out, though can’t remember actually beating it. I don’t actually remember much about the game apart from the art style, though it hadn’t struck me as particularly groundbreaking, other than that sort of investigative game hadn’t been a wildly popular genre on Nintendo systems before. I remembered PC games that had used those mechanics, but it hadn’t really been a thing on consoles at that point.