I bought this for retail at launch, its very nice. Dunno if its like other 3DS's but it does scratch easily, I have one or two small scratches on mine :( Probably could buff out easily.
3DS XL is awesome if you are an adult / guy, size is just perfect
People may think this is overkill, but I am very OCD when it comes to my electronics so I always buy the maximum protection invisibleshield for any device I own. I ended up getting the 3DS XL maximum coverage at B1G1 free directly from Zagg when they were doing one of their annual promotions, so I ended up paying $24.99 for two maximum coverage invisibleshields. Which worked out great since I had picked up the Zelda and Luigi limited edition new from Best Buy with a $149.99 price match to Walmart. They can be a bit annoying to apply, but once you get it on properly it actually makes the 3DS look better in my opinion as it brings out the colors more and gives the surface a shiny finish opposed to matte. I also recently picked up two Nintendo 3DS XL Duraflexi Protectors from Amazon for $11 or $12 a piece. I ended up getting those just as a safety precaution in case kids drop them at any point.
I would recommend either one of those products to avoid getting scratches on your device, or if you are like me you can always double up and get both.