These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Seasonal Rot: Every set since Infinity Challenge has been accused by some as being the end of the game. Be it expanding into non-comic book based licenses, sculpt and paint quality, too many high point pieces, too many low point pieces, new mechanics that are confusing or "game-breaking", too many figures, too few figures, too much product coming out at once, each set seems to be the set that will bankrupt Wizkids. Again.
Uncanny Valley: Some of the figures can fall into this due to odd proportions that often take a while for the player/viewer to realize, such as the Wolverine figure from the Giant-Size X-Men set and his just-so-subtly oversized head.