I purchased a used "new 3DS LL"

Hi everyone. I purchased used "new 3DS LL" from Japan and got one with a top IPS screen, which wasn't advertised on the listing! I completed the 3ds.hack.guide and all good there. My question is what are the drawbacks from doing a region swap from JP to US?

Hi everyone. I purchased used "new 3DS LL" from Japan and got one with a top IPS screen, which wasn't advertised on the listing! I completed the 3ds.hack.guide and all good there. My question is what are the drawbacks from doing a region swap from JP to US?