It's very early prototype, the next is coming. And you CAN adjust to the angles you want.
The thing that worries me about this design is that it may be too top heavy to easily wield and if the screen is big that it will be too wide for thumb typing. For those that have bigger phones like 5.5"+, Try typing in landscape. If you want big screen may need to have keyboard split into two halves that are closer to each side. Anyways, seems like a problem for me. Maybe not for most here?