I have a Defender 8 camera system and use Asee for my iphone 4. The app works good for me, and the ads really arent a problem as they are at the top and bottom of the screen. Only 1 camera can be viewed at at a time, but changing to another camera is simple. Works in portrait or landscape mode, with landscape mode giving you a larger screen. Zooming in and out is done by zooming as you would a photo. Setting it up was fairly easy as well. There are separate connections for wifi and internet. Other than the ads I cant find any cons. As they say, works for me.
vinnienap about ASee