I tried it around when it came out... Got on, was a bit confused, killed a good bunch, and encountered multiple hackers. I have no idea if it's fixed, but it wasn't all that great.
I have the Wii U and I really enjoy it!! DK Country Tropical Freeze is amazing, the Mario and Luigi U games, plus I even like the NES remix game! And highly reccommended for a great twist to classic NES titles.