YMMV / Ultimate Iron Man

• Audience-Alienating Premise: Not only did this series attempt to reinvent the wheel on Iron Man for a line where he really didn't need it, it also went with a really weird direction, turning Tony Stark into a mutant brain baby with regenerative powers who wore the suit for health purposes. Even among fans of this series who enjoy the story on its own merits, it's widely agreed that this was fundamentally too extreme a reinvention for the character to build up an audience (not to mention completely at odds with how previous books in the Ultimate Marvel line characterized him), so it's unsurprising that this origin story was effectively discarded even within canon.
• Complete Monster: Loni Stane is the true villain behind Obadiah Stane and Dolores. A sociopathic woman who uses everyone around her as stepping stones to more power, Loni orchestrates the murder of her own husband Zebediah, having him vertically ripped in half slowly out of sadism, and frames her former husband Howard Stark for it, who she then tries to have poisoned. Making a move to become an Arms Dealer, Loni plans to blow up an entire city with a nuclear weapon, killing her own son Obadiah in the process to eliminate suspicion from herself, and executes the terrorist she hired to help with this, Dolores. Later leaving Obadiah to die from poison gas while mocking him, Loni executes the teenage girl Nifara as well as her own henchmen to eliminate witnesses of her crimes, and then plans to murder Tony Stark while forcing his father Howard to watch, with Loni taking despicable joy from the pain she causes the whole while.
• Slow-Paced Beginning: Even with Decompressed Comic storytelling, it takes four issues out of five for any semblance of Iron Man to show up in Ultimate Iron Man. By then, the series is inexplicably split into two with Ultimate Iron Man II finally telling the readers about Tony's first armored adventure. With how much focus there had been around Howard, you'd think the series was about him rather than Tony.