It was definitely a little difficult to get used to, but after an hour of texting Im already so much better. I tried Swype and Swiftkey, and thought they were alright, still eventually using the iOS keyboard at the end of the day though. Nintype is incredibly well thought out, full of neat features, and very efficient (and fun) to use. Definitely worth the $4.99
cjs_eng about Nintype, v1.3