I found my friend's Casio Word Tank G55 to be considerably less user-friendly than my Sharp 8300 for one simple reason. Suppose I'm looking up 往復切符. On the Sharp model, once I've typed おうふ, the word I'm looking for is already the third on the list of potential matches. However, on the G55, it will never show up, no matter what you type because it's considered a compound word and to find it you must open the entry for 往復 and scroll down 'til you find what you're looking for. This can become a very frustrating process. Perhaps your casio handles this issue better.