I have replaced a wAP ac (outside) and a cAP AX (inside) with the wAP AX. Can see any difference inside, the connection is stable (which is most important to me) and the wife is also happy (by the looks in comparison with the cAP AX).
It is available (at least in Europe), where do you live?
The radiation pattern can be found in other topic (where it is linked as a pdf file).