I use it and like it quite a lot. It deals with the number you want to call somehow through Safari, and that creates a small delay. I don't find that annoying, but some do. It beats the heck out of a bunch of separate $1 applications to speed dial a series of numbers. And it makes calling much easier and safer if you are driving.
The app store is full of speed dial applications. Dial 1, Dial 2, Dial 3, etc. Dad, Mom, Girlfriend, Boyfriend, etc. You get the idea. I think there are some free ones and others that go for $1 each. I search in the App Store for "speed dial" and got a pageful, almost all of which are examples of this kind of application. And I'm reasonably sure that isn't all of them.
I don't know if they are faster than OneTouchDial or not.
Try searching in the App Store for "fast SMS" or "fast text" and see if any of those meet your needs.Thanks. The ones I'm having a hard time finding are the ones that let you make a shortcut to text someone quickly.