The iOS word flow is good, but it's very different from the Windows phone version. Visually, features, and even the sounds. It's not the same app. Better in some ways, worse in others. Most people think it's just the WP version ported to ios and its not.
Yep, I've tried and tried to get used to it on iOS - especially with the new version which came out this week - but I just can't. Something feels "off" about it.
When normal tap-typing it's not as accurate as the default iOS keyboard.
When swiping it's not as accurate as the Windows Phone keyboard.
The new features for gifs and searches are neat, but they're not that necessary for me.