GENERAL INFO: I can't get enough of these amiibo. I decided to buy just Marth at launch to see how they do and by god the amiibo are amazing. Amiibo levels affect their stats so a lvl. 50 Marth amiibo is stronger, faster and can take a hit better than a normal Marth even if you don't play with custom characters. Amiibo are also the best way outside of All-Star mode to get equippable items and trophies because they earn more of them the more they fight.LEVELING: Leveling them is fast and easy, it only takes about 2-3 hours of gameplay to get them to level 50. That is assuming you play 30 minute timed games. They can even level against CPUs if you want to leave your Wii U on and do other things.AI LEARNING: As for the AI learning, that continues even after the amiibo is at max level. After he reached level 50, I trained my Marth amiibo during several hours of grueling 1v1 and after the first few battles he became so good that he beat me about 4 times out of 5. It is very clear that they play differently depending on how they are trained and it's even possible that the amiibo forgets how to battle one way if it's constantly thrown into a different sort of battle. For instance, I've noticed a change in the moves Marth uses after constantly putting him into Free-For-All battles or battles where he's on a small team vs. a large team. It will be interesting to see where experimentation takes me. Either way, after battling the well trained amiibo, level 9's are a cake walk.FIGURINE: My figurine came just fine, no problem or complaints at all and no damage done by the packaging. Amazon is very good with returns though so if you get a wonky one, just order a new one and return the old one.CONCLUSION: After playing with Marth for a couple of days I decided to go out and buy 3 more amiibo. Now I have Link, Mario and Pikachu and they all trained against Marth and they're all just as formidable as he is. I love pitting 3 of them against a team of 5 lvl 9 CPUs in 8 Player Smash and just watching them go to town on the poor, unsuspecting CPU players. I highly recommend getting at least one amiibo to try them out, even if it's not Marth (who just happens to be my favorite). I've nearly come to the decision to get them all. My wallet's crying already...