Once again, "The Asylum" notoriously rode on the coattails of a vastly superior and more successful film. Technically, it was "Finding Dory", which was released the same year as this, but "Izzie's Way Home" is clearly ripping off "Finding Nemo". For all of you parents and grandparents who were tricked into buying this for your kids, believing it was "Finding Nemo", you all have my sympathies.
For starters, as par the course, the animation is shoddy and lazy. The aquatic characters lip sync is terrible, their fins barely move, even when their swimming, and their expressions are stiff and lifeless. There's even a scene where the human yacht owner simply floats across the floor instead of walking. All of the scenery and backgrounds looked plain and have frequently copied and pasted objects as decorations.
Despite having a few remarkable names on board, all of the voice acting made the characters sound robotic at best, or annoying and disgusting at worst. There's a pompous British fish as the main villain, a trio of snobby Mean Girls-like fish (one voiced by Tori Spelling) who bully Izzie, and a sea cucumber named Carl (Joey Fatone...yes really) who belches and farts all the time. Besides that, nothing they do elicits anything from viewers, not even Howard and Izzie's father and daughter relationship.
In the end, this was The Asylum's second worst animated film after Trolland rating wise. But in a twisted sort of way, Trolland was marginally better than this, because at least it was so amazingly bad, it could make you laugh. Izzie's Way Home, on the other hand, is just bad and boring, so keep it far away from your kids.