1) When the keyboard doesnt understand the word youre typing, it _really_ has no freaking clue and punishes you for it. And by that, I mean you will swipe out the full word, receive only the first few letters and nothing else. Then you will spend your time backspacing invisible characters, pretty much clearing the entire word. Trying to correct that woes typically results in frustration as you continue to swipe characters it will simply given up on. Alternatively, it may decide when the word you type is close but not close enough for the word suggestions, your only recourse is to retype the whole thing. And if _that_ fails more than once, you have to peck mode the thing which is tapping it out like the conventional iOS keyboard and, by then, any and all word-per-minute gains have been crushed. If it only plagued the occasional word the keyboard had not seen, that would be one thing, but this happens repeatedly with all too common and previously typed words greater than six letters.
2) The options menu fancy and borrows heavily from Hipjot but the problem remains the same between the two apps: both Hipjot and Nintype boast tons of options and those menus are entirely unsuited for it. One has to drill down two or three categories to change an option which have minimal explanation and then, once picked, you are unceremoniously kicked, forcing you to repeat the steps if you had another setting youd like to adjust even in the same category. A full screen closes-only-when-you-tap-the-close-button sheet would be greatly appreciated and would allow a goodly portion of the guides on reddit to be placed in-app instead of constantly having to reference the site on another device (or torment yourself switching between the browser and the app) while you try to figure out how to modify a specific behaviour or, more importantly, modifies the behaviour in the way you had hoped.
I want to like the thing but it is not a very kind keyboard and when Im typing faster with the stock keyboard months later.. well, ones milage may vary. When the swiping works though (as in, the aforementioned does not happen), its a great feeling.
Mobolger about Nintype, v1.6