This is a goofy take on history that will be popular with fans of Kinney's Wimpy Kid and other irreverent middle grade books which celebrate potty humor and unlikely heroes. Ike is interested to travel back in time but doesn't have too much of a concept of what language and manners he should embrace, so he frequently angers people he meets. He refers to Franklin as B-Freezy, for example, and almost blows the audience with Antoinette before settling down and trying to fit in.
One of the best parts about this is Claire's letters from the "future"; she informs him that things are not going well, but also keeps an eye on any historical anomaly's that crop up. Once Ike returns, there are a few things that are different, which is a bit of an unusual turn for a time travel book.
Fans of Potter's The Left Behinds and Limbaugh's Rush Revere books will want to pick up these two books. For more accurate historical content, they can investigate Gutman's Flashback Four or Qwerty Stevens time travel books.