Excellent lego set: the price is quite reasonable, the characters are successful (especially Storm / Storm and Wolverine that finally has its original suit), the sentry and the aircraft are pretty cool. The aircraft can also contain four minifigs without problems (and even more with minor mods), which is rare for a lego vehicle, against the fender design is a bit questionable and they tend to fall easily.
Otherwise, you can just regret that there are only 3 X-Men 4 places, so we would love to have figures of Professor Xavier, Jean Grey or Nightcrawler / Diablo, for example ...