The Android keyboard was a good upgrade over the current stock keyboard. And served as a model for how applications built for the newest Android operating system would look. I have used it as my primary keyboard for about a week. I found it very fast to type with, accurate, and aesthetically pleasing. Gesture typing had even merited a trial. Although don’t expect much of it if you use lots of names or a sophisticated vocabulary.
Suppose you are a diehard user of a specific third-party keyboard. In that case, the Android keyboard will unlikely make you switch immediately. So, switching is much easier now; hold down the spacebar to select a different keyboard. This makes it easy to try keyboards out while keeping your preferred keyboard ready.