Complaints we've heard include the chaos inherent in trying to get a big group of friends together at once, host and server issues, and just the general pain of keeping up with the codes in the first place. We had to compare our pristine selves to Microsoft, but as these things go, gamer tags are certainly easier to manage. Nintendo's overly complicated online system has definitely affected our Game Nights at times.
What's your take? Do you see benefits in friend codes, or obstacles? What changes would you like to see made?